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year | consumption | change |
1986 | 7.90 | NA |
1987 | 10.00 | 26.58% |
1988 | 8.60 | -14.00% |
1989 | 8.90 | 3.49% |
1990 | 9.20 | 3.37% |
1991 | 9.00 | -2.17% |
1992 | 9.40 | 4.44% |
1993 | 9.40 | 0.00% |
1994 | 9.60 | 2.13% |
1995 | 8.50 | -11.46% |
1996 | 8.20 | -3.53% |
1997 | 9.60 | 17.07% |
1998 | 9.00 | -6.25% |
1999 | 9.30 | 3.33% |
2000 | 9.30 | 0.00% |
2001 | 9.40 | 1.08% |
2002 | 9.00 | -4.26% |
2003 | 8.80 | -2.22% |
2004 | 9.10 | 3.41% |
2005 | 9.10 | 0.00% |
2006 | 9.40 | 3.30% |
2007 | 9.70 | 3.19% |
2008 | 11.00 | 13.40% |
2009 | 12.00 | 9.09% |
2010 | 13.00 | 8.33% |
2011 | 13.00 | 0.00% |
2012 | 13.00 | 0.00% |
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