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year | consumption | change |
1980 | .64 | NA |
1981 | .66 | 2.97% |
1982 | .71 | 8.36% |
1983 | .72 | 0.98% |
1984 | .80 | 10.69% |
1985 | .79 | -0.63% |
1986 | .90 | 13.01% |
1987 | .84 | -6.26% |
1988 | .91 | 8.10% |
1989 | .95 | 4.63% |
1990 | .93 | -1.58% |
1991 | .96 | 2.68% |
1992 | .98 | 2.19% |
1993 | 1.06 | 7.76% |
1994 | 1.10 | 3.98% |
1995 | 1.12 | 1.64% |
1996 | 1.19 | 6.72% |
1997 | 1.21 | 1.76% |
1998 | 1.24 | 2.64% |
1999 | 1.16 | -6.43% |
2000 | 1.16 | -0.09% |
2001 | 1.19 | 2.15% |
2002 | 1.16 | -2.02% |
2003 | 1.20 | 3.26% |
2004 | 1.23 | 2.00% |
2005 | 1.27 | 3.18% |
2006 | 1.31 | 3.79% |
2007 | 1.32 | 0.30% |
2008 | 1.36 | 3.26% |
2009 | 1.35 | -0.59% |
2010 | 1.45 | 7.17% |
2011 | 1.54 | 6.28% |
2012 | 1.58 | 2.60% |
2013 | 1.49 | -5.95% |
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