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year | consumption | change |
1986 | 7.10 | NA |
1987 | 9.70 | 36.62% |
1988 | 12.00 | 23.71% |
1989 | 10.00 | -16.67% |
1990 | 9.80 | -2.00% |
1991 | 6.20 | -36.73% |
1992 | 6.80 | 9.68% |
1993 | 6.80 | 0.00% |
1994 | 6.90 | 1.47% |
1995 | 5.90 | -14.49% |
1996 | 6.00 | 1.69% |
1997 | 6.90 | 15.00% |
1998 | 6.50 | -5.80% |
1999 | 6.90 | 6.15% |
2000 | 4.90 | -28.99% |
2001 | 2.80 | -42.86% |
2002 | 2.40 | -14.29% |
2003 | 2.50 | 4.17% |
2004 | 5.20 | 108.00% |
2005 | 5.10 | -1.92% |
2006 | 5.10 | 0.00% |
2007 | 5.10 | 0.00% |
2008 | 5.90 | 15.69% |
2009 | 4.60 | -22.03% |
2010 | 5.90 | 28.26% |
2011 | 8.60 | 45.76% |
2012 | 9.20 | 6.98% |
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