Month | Data | Change | Unit |
---|---|---|---|
November, 1978 | 0.047 | 0 | USD/kwh |
December, 1978 | 0.045 | -0.002 | USD/kwh |
January, 1979 | 0.041 | -0.004 | USD/kwh |
February, 1979 | 0.045 | + 0.004 | USD/kwh |
March, 1979 | 0.045 | 0 | USD/kwh |
April, 1979 | 0.046 | + 0.001 | USD/kwh |
May, 1979 | 0.043 | -0.003 | USD/kwh |
June, 1979 | 0.053 | + 0.01 | USD/kwh |
July, 1979 | 0.051 | -0.002 | USD/kwh |
August, 1979 | 0.045 | -0.006 | USD/kwh |
September, 1979 | 0.051 | + 0.006 | USD/kwh |
October, 1979 | 0.043 | -0.008 | USD/kwh |
November, 1979 | 0.043 | 0 | USD/kwh |
December, 1979 | 0.043 | 0 | USD/kwh |
January, 1980 | 0.043 | 0 | USD/kwh |
February, 1980 | 0.044 | + 0.001 | USD/kwh |
March, 1980 | 0.045 | + 0.001 | USD/kwh |
April, 1980 | 0.045 | 0 | USD/kwh |
May, 1980 | 0.048 | + 0.003 | USD/kwh |
June, 1980 | 0.065 | + 0.017 | USD/kwh |
July, 1980 | 0.065 | 0 | USD/kwh |
August, 1980 | 0.063 | -0.002 | USD/kwh |
September, 1980 | 0.063 | 0 | USD/kwh |
October, 1980 | 0.051 | -0.012 | USD/kwh |
November, 1980 | 0.051 | 0 | USD/kwh |
December, 1980 | 0.049 | -0.002 | USD/kwh |
January, 1981 | 0.05 | + 0.001 | USD/kwh |
February, 1981 | 0.05 | 0 | USD/kwh |
March, 1981 | 0.05 | 0 | USD/kwh |
April, 1981 | 0.049 | -0.001 | USD/kwh |
May, 1981 | 0.051 | + 0.002 | USD/kwh |
June, 1981 | 0.066 | + 0.015 | USD/kwh |
July, 1981 | 0.068 | + 0.002 | USD/kwh |
August, 1981 | 0.067 | -0.001 | USD/kwh |
September, 1981 | 0.068 | + 0.001 | USD/kwh |
October, 1981 | 0.062 | -0.006 | USD/kwh |
November, 1981 | 0.062 | 0 | USD/kwh |
December, 1981 | 0.062 | 0 | USD/kwh |
January, 1982 | 0.062 | 0 | USD/kwh |
February, 1982 | 0.067 | + 0.005 | USD/kwh |
March, 1982 | 0.068 | + 0.001 | USD/kwh |
April, 1982 | 0.066 | -0.002 | USD/kwh |
May, 1982 | 0.066 | 0 | USD/kwh |
June, 1982 | 0.075 | + 0.009 | USD/kwh |
July, 1982 | 0.075 | 0 | USD/kwh |
August, 1982 | 0.075 | 0 | USD/kwh |
September, 1982 | 0.074 | -0.001 | USD/kwh |
October, 1982 | 0.066 | -0.008 | USD/kwh |
November, 1982 | 0.066 | 0 | USD/kwh |
December, 1982 | 0.066 | 0 | USD/kwh |
January, 1983 | 0.066 | 0 | USD/kwh |
February, 1983 | 0.067 | + 0.001 | USD/kwh |
March, 1983 | 0.067 | 0 | USD/kwh |
April, 1983 | 0.066 | -0.001 | USD/kwh |
May, 1983 | 0.066 | 0 | USD/kwh |
June, 1983 | 0.073 | + 0.007 | USD/kwh |
July, 1983 | 0.074 | + 0.001 | USD/kwh |
August, 1983 | 0.074 | 0 | USD/kwh |
September, 1983 | 0.074 | 0 | USD/kwh |
October, 1983 | 0.066 | -0.008 | USD/kwh |
November, 1983 | 0.066 | 0 | USD/kwh |
December, 1983 | 0.067 | + 0.001 | USD/kwh |
January, 1984 | 0.068 | + 0.001 | USD/kwh |
February, 1984 | 0.068 | 0 | USD/kwh |
March, 1984 | 0.068 | 0 | USD/kwh |
April, 1984 | 0.068 | 0 | USD/kwh |
May, 1984 | 0.068 | 0 | USD/kwh |
June, 1984 | 0.079 | + 0.011 | USD/kwh |
July, 1984 | 0.079 | 0 | USD/kwh |
August, 1984 | 0.08 | + 0.001 | USD/kwh |
September, 1984 | 0.08 | 0 | USD/kwh |
October, 1984 | 0.07 | -0.01 | USD/kwh |
November, 1984 | 0.07 | 0 | USD/kwh |
December, 1984 | 0.072 | + 0.002 | USD/kwh |
January, 1985 | 0.072 | 0 | USD/kwh |
February, 1985 | 0.073 | + 0.001 | USD/kwh |
March, 1985 | 0.073 | 0 | USD/kwh |
April, 1985 | 0.073 | 0 | USD/kwh |
May, 1985 | 0.073 | 0 | USD/kwh |
June, 1985 | 0.082 | + 0.009 | USD/kwh |
July, 1985 | 0.082 | 0 | USD/kwh |
August, 1985 | 0.082 | 0 | USD/kwh |
October, 1985 | 0.073 | -0.009 | USD/kwh |
November, 1985 | 0.074 | + 0.001 | USD/kwh |
December, 1985 | 0.074 | 0 | USD/kwh |
January, 1986 | 0.074 | 0 | USD/kwh |
February, 1986 | 0.07 | -0.004 | USD/kwh |
March, 1986 | 0.07 | 0 | USD/kwh |
April, 1986 | 0.069 | -0.001 | USD/kwh |
May, 1986 | 0.069 | 0 | USD/kwh |
June, 1986 | 0.081 | + 0.012 | USD/kwh |
July, 1986 | 0.081 | 0 | USD/kwh |
August, 1986 | 0.081 | 0 | USD/kwh |
September, 1986 | 0.081 | 0 | USD/kwh |
October, 1986 | 0.068 | -0.013 | USD/kwh |
November, 1986 | 0.068 | 0 | USD/kwh |
December, 1986 | 0.068 | 0 | USD/kwh |
January, 1987 | 0.067 | -0.001 | USD/kwh |
February, 1987 | 0.067 | 0 | USD/kwh |
March, 1987 | 0.067 | 0 | USD/kwh |
April, 1987 | 0.067 | 0 | USD/kwh |
May, 1987 | 0.067 | 0 | USD/kwh |
June, 1987 | 0.076 | + 0.009 | USD/kwh |
July, 1987 | 0.076 | 0 | USD/kwh |
August, 1987 | 0.076 | 0 | USD/kwh |
September, 1987 | 0.076 | 0 | USD/kwh |
October, 1987 | 0.063 | -0.013 | USD/kwh |
November, 1987 | 0.063 | 0 | USD/kwh |
December, 1987 | 0.063 | 0 | USD/kwh |
January, 1988 | 0.063 | 0 | USD/kwh |
February, 1988 | 0.063 | 0 | USD/kwh |
March, 1988 | 0.063 | 0 | USD/kwh |
April, 1988 | 0.063 | 0 | USD/kwh |
May, 1988 | 0.063 | 0 | USD/kwh |
June, 1988 | 0.076 | + 0.013 | USD/kwh |
July, 1988 | 0.076 | 0 | USD/kwh |
August, 1988 | 0.076 | 0 | USD/kwh |
September, 1988 | 0.076 | 0 | USD/kwh |
October, 1988 | 0.063 | -0.013 | USD/kwh |
November, 1988 | 0.064 | + 0.001 | USD/kwh |
December, 1988 | 0.064 | 0 | USD/kwh |
January, 1989 | 0.064 | 0 | USD/kwh |
February, 1989 | 0.064 | 0 | USD/kwh |
March, 1989 | 0.064 | 0 | USD/kwh |
April, 1989 | 0.064 | 0 | USD/kwh |
May, 1989 | 0.064 | 0 | USD/kwh |
June, 1989 | 0.078 | + 0.014 | USD/kwh |
July, 1989 | 0.078 | 0 | USD/kwh |
August, 1989 | 0.078 | 0 | USD/kwh |
September, 1989 | 0.078 | 0 | USD/kwh |
October, 1989 | 0.066 | -0.012 | USD/kwh |
November, 1989 | 0.067 | + 0.001 | USD/kwh |
December, 1989 | 0.069 | + 0.002 | USD/kwh |
January, 1990 | 0.07 | + 0.001 | USD/kwh |
February, 1990 | 0.07 | 0 | USD/kwh |
March, 1990 | 0.072 | + 0.002 | USD/kwh |
April, 1990 | 0.072 | 0 | USD/kwh |
May, 1990 | 0.074 | + 0.002 | USD/kwh |
June, 1990 | 0.087 | + 0.013 | USD/kwh |
July, 1990 | 0.087 | 0 | USD/kwh |
August, 1990 | 0.087 | 0 | USD/kwh |
September, 1990 | 0.087 | 0 | USD/kwh |
October, 1990 | 0.073 | -0.014 | USD/kwh |
November, 1990 | 0.073 | 0 | USD/kwh |
December, 1990 | 0.073 | 0 | USD/kwh |
January, 1991 | 0.077 | + 0.004 | USD/kwh |
February, 1991 | 0.079 | + 0.002 | USD/kwh |
March, 1991 | 0.079 | 0 | USD/kwh |
April, 1991 | 0.079 | 0 | USD/kwh |
May, 1991 | 0.079 | 0 | USD/kwh |
June, 1991 | 0.102 | + 0.023 | USD/kwh |
July, 1991 | 0.102 | 0 | USD/kwh |
August, 1991 | 0.102 | 0 | USD/kwh |
September, 1991 | 0.102 | 0 | USD/kwh |
October, 1991 | 0.085 | -0.017 | USD/kwh |
November, 1991 | 0.085 | 0 | USD/kwh |
December, 1991 | 0.085 | 0 | USD/kwh |
January, 1992 | 0.083 | -0.002 | USD/kwh |
February, 1992 | 0.083 | 0 | USD/kwh |
March, 1992 | 0.082 | -0.001 | USD/kwh |
April, 1992 | 0.082 | 0 | USD/kwh |
May, 1992 | 0.082 | 0 | USD/kwh |
June, 1992 | 0.101 | + 0.019 | USD/kwh |
July, 1992 | 0.101 | 0 | USD/kwh |
August, 1992 | 0.101 | 0 | USD/kwh |
September, 1992 | 0.101 | 0 | USD/kwh |
October, 1992 | 0.08 | -0.021 | USD/kwh |
November, 1992 | 0.08 | 0 | USD/kwh |
December, 1992 | 0.08 | 0 | USD/kwh |
January, 1993 | 0.08 | 0 | USD/kwh |
February, 1993 | 0.08 | 0 | USD/kwh |
March, 1993 | 0.079 | -0.001 | USD/kwh |
April, 1993 | 0.079 | 0 | USD/kwh |
May, 1993 | 0.083 | + 0.004 | USD/kwh |
June, 1993 | 0.104 | + 0.021 | USD/kwh |
July, 1993 | 0.105 | + 0.001 | USD/kwh |
August, 1993 | 0.105 | 0 | USD/kwh |
September, 1993 | 0.105 | 0 | USD/kwh |
October, 1993 | 0.085 | -0.02 | USD/kwh |
November, 1993 | 0.084 | -0.001 | USD/kwh |
December, 1993 | 0.078 | -0.006 | USD/kwh |
January, 1994 | 0.078 | 0 | USD/kwh |
February, 1994 | 0.078 | 0 | USD/kwh |
March, 1994 | 0.078 | 0 | USD/kwh |
April, 1994 | 0.078 | 0 | USD/kwh |
May, 1994 | 0.078 | 0 | USD/kwh |
June, 1994 | 0.102 | + 0.024 | USD/kwh |
July, 1994 | 0.101 | -0.00099999999999999 | USD/kwh |
August, 1994 | 0.101 | 0 | USD/kwh |
September, 1994 | 0.101 | 0 | USD/kwh |
October, 1994 | 0.077 | -0.024 | USD/kwh |
November, 1994 | 0.076 | -0.001 | USD/kwh |
December, 1994 | 0.076 | 0 | USD/kwh |
January, 1995 | 0.076 | 0 | USD/kwh |
February, 1995 | 0.076 | 0 | USD/kwh |
March, 1995 | 0.076 | 0 | USD/kwh |
April, 1995 | 0.076 | 0 | USD/kwh |
May, 1995 | 0.076 | 0 | USD/kwh |
June, 1995 | 0.1 | + 0.024 | USD/kwh |
July, 1995 | 0.101 | + 0.001 | USD/kwh |
August, 1995 | 0.101 | 0 | USD/kwh |
September, 1995 | 0.1 | -0.001 | USD/kwh |
October, 1995 | 0.076 | -0.024 | USD/kwh |
November, 1995 | 0.076 | 0 | USD/kwh |
December, 1995 | 0.076 | 0 | USD/kwh |
January, 1996 | 0.076 | 0 | USD/kwh |
February, 1996 | 0.076 | 0 | USD/kwh |
March, 1996 | 0.076 | 0 | USD/kwh |
April, 1996 | 0.076 | 0 | USD/kwh |
May, 1996 | 0.076 | 0 | USD/kwh |
June, 1996 | 0.1 | + 0.024 | USD/kwh |
July, 1996 | 0.101 | + 0.001 | USD/kwh |
August, 1996 | 0.1 | -0.001 | USD/kwh |
September, 1996 | 0.1 | 0 | USD/kwh |
October, 1996 | 0.076 | -0.024 | USD/kwh |
November, 1996 | 0.076 | 0 | USD/kwh |
December, 1996 | 0.076 | 0 | USD/kwh |
January, 1997 | 0.076 | 0 | USD/kwh |
February, 1997 | 0.076 | 0 | USD/kwh |
March, 1997 | 0.076 | 0 | USD/kwh |
April, 1997 | 0.076 | 0 | USD/kwh |
May, 1997 | 0.076 | 0 | USD/kwh |
June, 1997 | 0.1 | + 0.024 | USD/kwh |
July, 1997 | 0.1 | 0 | USD/kwh |
August, 1997 | 0.1 | 0 | USD/kwh |
September, 1997 | 0.1 | 0 | USD/kwh |
October, 1997 | 0.076 | -0.024 | USD/kwh |
November, 1997 | 0.076 | 0 | USD/kwh |
December, 1997 | 0.076 | 0 | USD/kwh |
January, 2010 | 0.152 | + 0.076 | USD/kwh |
February, 2010 | 0.086 | -0.066 | USD/kwh |
March, 2010 | 0.146 | + 0.06 | USD/kwh |
April, 2010 | 0.147 | + 0.001 | USD/kwh |
May, 2010 | 0.151 | + 0.004 | USD/kwh |
June, 2010 | 0.154 | + 0.003 | USD/kwh |
July, 2010 | 0.154 | 0 | USD/kwh |
August, 2010 | 0.151 | -0.003 | USD/kwh |
September, 2010 | 0.151 | 0 | USD/kwh |
October, 2010 | 0.132 | -0.019 | USD/kwh |
November, 2010 | 0.132 | 0 | USD/kwh |
December, 2010 | 0.133 | + 0.001 | USD/kwh |
January, 2011 | 0.134 | + 0.001 | USD/kwh |
February, 2011 | 0.135 | + 0.001 | USD/kwh |
March, 2011 | 0.137 | + 0.002 | USD/kwh |
April, 2011 | 0.139 | + 0.002 | USD/kwh |
May, 2011 | 0.138 | -0.001 | USD/kwh |
June, 2011 | 0.139 | + 0.001 | USD/kwh |
July, 2011 | 0.14 | + 0.001 | USD/kwh |
August, 2011 | 0.138 | -0.002 | USD/kwh |
September, 2011 | 0.136 | -0.002 | USD/kwh |
October, 2011 | 0.13 | -0.006 | USD/kwh |
November, 2011 | 0.128 | -0.002 | USD/kwh |
December, 2011 | 0.129 | + 0.001 | USD/kwh |
January, 2012 | 0.129 | 0 | USD/kwh |
February, 2012 | 0.13 | + 0.001 | USD/kwh |
March, 2012 | 0.129 | -0.001 | USD/kwh |
April, 2012 | 0.129 | 0 | USD/kwh |
May, 2012 | 0.13 | + 0.001 | USD/kwh |
June, 2012 | 0.137 | + 0.007 | USD/kwh |
July, 2012 | 0.14 | + 0.003 | USD/kwh |
August, 2012 | 0.14 | 0 | USD/kwh |
September, 2012 | 0.14 | 0 | USD/kwh |
October, 2012 | 0.131 | -0.009 | USD/kwh |
November, 2012 | 0.128 | -0.003 | USD/kwh |
December, 2012 | 0.127 | -0.001 | USD/kwh |
January, 2013 | 0.125 | -0.002 | USD/kwh |
February, 2013 | 0.13 | + 0.005 | USD/kwh |
March, 2013 | 0.135 | + 0.005 | USD/kwh |
April, 2013 | 0.134 | -0.001 | USD/kwh |
May, 2013 | 0.129 | -0.005 | USD/kwh |
June, 2013 | 0.144 | + 0.015 | USD/kwh |
July, 2013 | 0.145 | + 0.001 | USD/kwh |
August, 2013 | 0.147 | + 0.002 | USD/kwh |
September, 2013 | 0.148 | + 0.001 | USD/kwh |
October, 2013 | 0.144 | -0.004 | USD/kwh |
November, 2013 | 0.142 | -0.002 | USD/kwh |
December, 2013 | 0.142 | 0 | USD/kwh |
January, 2014 | 0.139 | -0.003 | USD/kwh |
February, 2014 | 0.139 | 0 | USD/kwh |
March, 2014 | 0.139 | 0 | USD/kwh |
April, 2014 | 0.139 | 0 | USD/kwh |
May, 2014 | 0.139 | 0 | USD/kwh |
June, 2014 | 0.131 | -0.008 | USD/kwh |
July, 2014 | 0.131 | 0 | USD/kwh |
August, 2014 | 0.132 | + 0.001 | USD/kwh |
September, 2014 | 0.137 | + 0.005 | USD/kwh |
October, 2014 | 0.135 | -0.002 | USD/kwh |
November, 2014 | 0.136 | + 0.001 | USD/kwh |
December, 2014 | 0.135 | -0.001 | USD/kwh |
January, 2015 | 0.138 | + 0.003 | USD/kwh |
February, 2015 | 0.14 | + 0.002 | USD/kwh |
March, 2015 | 0.135 | -0.005 | USD/kwh |
April, 2015 | 0.134 | -0.001 | USD/kwh |
May, 2015 | 0.134 | 0 | USD/kwh |
June, 2015 | 0.139 | + 0.005 | USD/kwh |
July, 2015 | 0.139 | 0 | USD/kwh |
August, 2015 | 0.14 | + 0.001 | USD/kwh |
September, 2015 | 0.139 | -0.001 | USD/kwh |
October, 2015 | 0.146 | + 0.007 | USD/kwh |
November, 2015 | 0.146 | 0 | USD/kwh |
December, 2015 | 0.146 | 0 | USD/kwh |
January, 2016 | 0.147 | + 0.001 | USD/kwh |
February, 2016 | 0.148 | + 0.001 | USD/kwh |
March, 2016 | 0.149 | + 0.001 | USD/kwh |
April, 2016 | 0.148 | -0.001 | USD/kwh |
May, 2016 | 0.148 | 0 | USD/kwh |
June, 2016 | 0.15 | + 0.002 | USD/kwh |
July, 2016 | 0.151 | + 0.001 | USD/kwh |
August, 2016 | 0.152 | + 0.001 | USD/kwh |
September, 2016 | 0.152 | 0 | USD/kwh |
October, 2016 | 0.15 | -0.002 | USD/kwh |
November, 2016 | 0.149 | -0.001 | USD/kwh |
December, 2016 | 0.149 | 0 | USD/kwh |
January, 2017 | 0.144 | -0.005 | USD/kwh |
February, 2017 | 0.145 | + 0.001 | USD/kwh |
March, 2017 | 0.143 | -0.002 | USD/kwh |
April, 2017 | 0.146 | + 0.003 | USD/kwh |
May, 2017 | 0.146 | 0 | USD/kwh |
June, 2017 | 0.139 | -0.007 | USD/kwh |
July, 2017 | 0.139 | 0 | USD/kwh |
August, 2017 | 0.139 | 0 | USD/kwh |
September, 2017 | 0.136 | -0.003 | USD/kwh |
October, 2017 | 0.135 | -0.001 | USD/kwh |
November, 2017 | 0.135 | 0 | USD/kwh |
December, 2017 | 0.135 | 0 | USD/kwh |
January, 2018 | 0.136 | + 0.001 | USD/kwh |
February, 2018 | 0.132 | -0.004 | USD/kwh |
March, 2018 | 0.129 | -0.003 | USD/kwh |
April, 2018 | 0.13 | + 0.001 | USD/kwh |
May, 2018 | 0.124 | -0.006 | USD/kwh |
June, 2018 | 0.124 | 0 | USD/kwh |
July, 2018 | 0.124 | 0 | USD/kwh |
August, 2018 | 0.127 | + 0.003 | USD/kwh |
September, 2018 | 0.127 | 0 | USD/kwh |
October, 2018 | 0.128 | + 0.001 | USD/kwh |
November, 2018 | 0.128 | 0 | USD/kwh |
December, 2018 | 0.127 | -0.001 | USD/kwh |
January, 2019 | 0.125 | -0.002 | USD/kwh |
February, 2019 | 0.129 | + 0.004 | USD/kwh |
March, 2019 | 0.129 | 0 | USD/kwh |
April, 2019 | 0.131 | + 0.002 | USD/kwh |
May, 2019 | 0.131 | 0 | USD/kwh |
June, 2019 | 0.118 | -0.013 | USD/kwh |
July, 2019 | 0.118 | 0 | USD/kwh |
August, 2019 | 0.116 | -0.002 | USD/kwh |
September, 2019 | 0.116 | 0 | USD/kwh |
October, 2019 | 0.122 | + 0.006 | USD/kwh |
November, 2019 | 0.123 | + 0.001 | USD/kwh |
December, 2019 | 0.125 | + 0.002 | USD/kwh |
January, 2020 | 0.127 | + 0.002 | USD/kwh |
February, 2020 | 0.132 | + 0.005 | USD/kwh |
March, 2020 | 0.133 | + 0.001 | USD/kwh |
April, 2020 | 0.133 | 0 | USD/kwh |
May, 2020 | 0.132 | -0.001 | USD/kwh |
June, 2020 | 0.128 | -0.004 | USD/kwh |
July, 2020 | 0.129 | + 0.001 | USD/kwh |
August, 2020 | 0.123 | -0.006 | USD/kwh |
September, 2020 | 0.121 | -0.002 | USD/kwh |
October, 2020 | 0.125 | + 0.004 | USD/kwh |
November, 2020 | 0.125 | 0 | USD/kwh |
December, 2020 | 0.125 | 0 | USD/kwh |
January, 2021 | 0.123 | -0.002 | USD/kwh |
February, 2021 | 0.122 | -0.001 | USD/kwh |
March, 2021 | 0.125 | + 0.003 | USD/kwh |
April, 2021 | 0.124 | -0.001 | USD/kwh |
May, 2021 | 0.131 | + 0.007 | USD/kwh |
June, 2021 | 0.13 | -0.001 | USD/kwh |
Year | Year Open - Year Close | Year Min - Year Max | Year Average | Year Change |
---|---|---|---|---|
2021 | 0.123 - 0.13 | 0.122 - 0.131 | 0.13 | + 0.01 |
2020 | 0.127 - 0.125 | 0.121 - 0.133 | 0.13 | -0 |
2019 | 0.125 - 0.125 | 0.116 - 0.131 | 0.12 | 0 |
2018 | 0.136 - 0.127 | 0.124 - 0.136 | 0.13 | -0.01 |
2017 | 0.144 - 0.135 | 0.135 - 0.146 | 0.14 | -0.01 |
2016 | 0.147 - 0.149 | 0.147 - 0.152 | 0.15 | 0 |
2015 | 0.138 - 0.146 | 0.134 - 0.146 | 0.14 | + 0.01 |
2014 | 0.139 - 0.135 | 0.131 - 0.139 | 0.14 | -0 |
2013 | 0.125 - 0.142 | 0.125 - 0.148 | 0.14 | + 0.02 |
2012 | 0.129 - 0.127 | 0.127 - 0.14 | 0.13 | -0 |
2011 | 0.134 - 0.129 | 0.128 - 0.14 | 0.14 | -0.01 |
2010 | 0.152 - 0.133 | 0.086 - 0.154 | 0.14 | -0.02 |
1997 | 0.076 - 0.076 | 0.076 - 0.1 | 0.08 | 0 |
1996 | 0.076 - 0.076 | 0.076 - 0.101 | 0.08 | 0 |
1995 | 0.076 - 0.076 | 0.076 - 0.101 | 0.08 | 0 |
1994 | 0.078 - 0.076 | 0.076 - 0.102 | 0.09 | -0 |
1993 | 0.08 - 0.078 | 0.078 - 0.105 | 0.09 | -0 |
1992 | 0.083 - 0.08 | 0.08 - 0.101 | 0.09 | -0 |
1991 | 0.077 - 0.085 | 0.077 - 0.102 | 0.09 | + 0.01 |
1990 | 0.07 - 0.073 | 0.07 - 0.087 | 0.08 | 0 |
1989 | 0.064 - 0.069 | 0.064 - 0.078 | 0.07 | + 0.01 |
1988 | 0.063 - 0.064 | 0.063 - 0.076 | 0.07 | 0 |
1987 | 0.067 - 0.063 | 0.063 - 0.076 | 0.07 | -0 |
1986 | 0.074 - 0.068 | 0.068 - 0.081 | 0.07 | -0.01 |
1985 | 0.072 - 0.074 | 0.072 - 0.082 | 0.08 | 0 |
1984 | 0.068 - 0.072 | 0.068 - 0.08 | 0.07 | 0 |
1983 | 0.066 - 0.067 | 0.066 - 0.074 | 0.07 | 0 |
1982 | 0.062 - 0.066 | 0.062 - 0.075 | 0.07 | 0 |
1981 | 0.05 - 0.062 | 0.049 - 0.068 | 0.06 | + 0.01 |
1980 | 0.043 - 0.049 | 0.043 - 0.065 | 0.05 | + 0.01 |
1979 | 0.041 - 0.043 | 0.041 - 0.053 | 0.05 | 0 |
1978 | 0.047 - 0.045 | 0.045 - 0.047 | 0.05 | -0 |