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year | consumption | change |
1986 | 3.20 | NA |
1987 | 1.10 | -65.63% |
1988 | .70 | -36.36% |
1989 | .70 | 0.00% |
1990 | 2.60 | 271.43% |
1991 | 3.10 | 19.23% |
1992 | 2.80 | -9.68% |
1993 | 2.80 | 0.00% |
1994 | 2.90 | 3.57% |
1995 | 2.90 | 0.00% |
1996 | 2.80 | -3.45% |
1997 | 2.90 | 3.57% |
1998 | 2.90 | 0.00% |
1999 | 2.90 | 0.00% |
2000 | 2.70 | -6.90% |
2001 | 2.90 | 7.41% |
2002 | 2.90 | 0.00% |
2003 | 3.10 | 6.90% |
2004 | 3.50 | 12.90% |
2005 | 3.60 | 2.86% |
2006 | 3.80 | 5.56% |
2007 | 3.80 | 0.00% |
2008 | 3.80 | 0.00% |
2009 | 3.80 | 0.00% |
2010 | 5.10 | 34.21% |
2011 | 5.10 | 0.00% |
2012 | 5.10 | 0.00% |
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