Year kWh 1971 138000000 1972 164000000 1973 234000000 1974 217000000 1975 224000000 1976 291000000 1977 326000000 1978 364000000 1979 308000000 1980 308000000 1981 297000000 1982 317000000 1983 377000000 1984 69000000 1985 67000000 1986 76000000 1987 102000000 1988 116000000 1989 119000000 1990 129000000 1991 72000000 1992 122000000 1993 155000000 1994 206000000 1995 238000000 1996 270000000 1997 279000000 1998 223000000 1999 221000000 2000 225000000 2001 199000000 2002 88000000 2003 75000000 2004 126000000 2005 144000000 2006 174000000 2007 157000000 2008 122000000 2009 203000000 2010 180000000 2011 229000000 2012 284000000 2013 277000000 2014 268000000 2015 294000000