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year | consumption | change |
1980 | .70 | NA |
1981 | .80 | 14.29 % |
1982 | .80 | 0.00 % |
1983 | .90 | 12.50 % |
1984 | 1.00 | 11.11 % |
1985 | 1.40 | 40.00 % |
1986 | 1.80 | 28.57 % |
1987 | 2.70 | 50.00 % |
1988 | 2.80 | 3.70 % |
1989 | 2.80 | 0.00 % |
1990 | 2.30 | -17.86 % |
1991 | 2.60 | 13.04 % |
1992 | 2.50 | -3.85 % |
1993 | 2.60 | 4.00 % |
1994 | 2.80 | 7.69 % |
1995 | 3.30 | 17.86 % |
1996 | 4.00 | 21.21 % |
1997 | 3.50 | -12.50 % |
1998 | 3.80 | 8.57 % |
1999 | 3.90 | 2.63 % |
2000 | 4.20 | 7.69 % |
2001 | 4.30 | 2.38 % |
2002 | 4.40 | 2.33 % |
2003 | 4.20 | -4.55 % |
2004 | 4.20 | 0.00 % |
2005 | 4.50 | 7.14 % |
2006 | 4.90 | 8.89 % |
2007 | 5.40 | 10.20 % |
2008 | 5.70 | 5.56 % |
2009 | 6.20 | 8.77 % |
2010 | 6.80 | 9.68 % |
2011 | 7.50 | 10.29 % |
2012 | 8.10 | 8.00 % |
2013 | 8.90 | 9.88 % |
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