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year | consumption | change |
1980 | .42 | NA |
1981 | .44 | 4.78% |
1982 | .46 | 4.11% |
1983 | .52 | 12.94% |
1984 | .61 | 19.22% |
1985 | .70 | 14.01% |
1986 | .75 | 7.14% |
1987 | .75 | 0.27% |
1988 | .80 | 5.72% |
1989 | .86 | 8.68% |
1990 | .98 | 13.66% |
1991 | 1.09 | 10.90% |
1992 | 1.14 | 4.32% |
1993 | 1.29 | 13.38% |
1994 | 1.43 | 11.18% |
1995 | 1.47 | 2.72% |
1996 | 1.67 | 13.39% |
1997 | 1.67 | 0.24% |
1998 | 1.69 | 1.26% |
1999 | 1.72 | 1.77% |
2000 | 1.98 | 14.86% |
2001 | 2.10 | 6.27% |
2002 | 2.24 | 6.32% |
2003 | 2.16 | -3.35% |
2004 | 2.19 | 1.11% |
2005 | 2.30 | 5.17% |
2006 | 2.36 | 2.87% |
2007 | 2.59 | 9.52% |
2008 | 2.74 | 5.87% |
2009 | 2.84 | 3.43% |
2010 | 3.03 | 6.91% |
2011 | 3.22 | 6.24% |
2012 | 3.23 | 0.22% |
2013 | 3.25 | 0.81% |
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