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year | consumption | change |
1986 | 2.00 | NA |
1987 | 1.40 | -30.00% |
1988 | 1.40 | 0.00% |
1989 | 1.00 | -28.57% |
1990 | .90 | -10.00% |
1991 | .90 | 0.00% |
1992 | 2.20 | 144.44% |
1993 | 1.90 | -13.64% |
1994 | 2.00 | 5.26% |
1995 | 2.40 | 20.00% |
1996 | 2.50 | 4.17% |
1997 | 2.60 | 4.00% |
1998 | 4.30 | 65.38% |
1999 | 5.30 | 23.26% |
2000 | 5.30 | 0.00% |
2001 | 5.40 | 1.89% |
2002 | 5.50 | 1.85% |
2003 | 5.40 | -1.82% |
2004 | 5.20 | -3.70% |
2005 | 5.50 | 5.77% |
2006 | 5.40 | -1.82% |
2007 | 5.40 | 0.00% |
2008 | 5.50 | 1.85% |
2009 | 4.70 | -14.55% |
2010 | 4.70 | 0.00% |
2011 | 4.70 | 0.00% |
2012 | 4.70 | 0.00% |
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