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year | consumption | change |
1986 | 3.90 | NA |
1987 | 3.90 | 0.00 % |
1988 | 3.60 | -7.69 % |
1989 | 3.10 | -13.89 % |
1990 | 3.70 | 19.35 % |
1991 | 4.50 | 21.62 % |
1992 | 4.80 | 6.67 % |
1993 | 5.40 | 12.50 % |
1994 | 5.70 | 5.56 % |
1995 | 6.50 | 14.04 % |
1996 | 6.60 | 1.54 % |
1997 | 10.00 | 51.52 % |
1998 | 9.80 | -2.00 % |
1999 | 8.90 | -9.18 % |
2000 | 9.10 | 2.25 % |
2001 | 9.90 | 8.79 % |
2002 | 11.00 | 11.11 % |
2003 | 11.00 | 0.00 % |
2004 | 9.90 | -10.00 % |
2005 | 10.00 | 1.01 % |
2006 | 10.00 | 0.00 % |
2007 | 11.00 | 10.00 % |
2008 | 9.40 | -14.55 % |
2009 | 9.40 | 0.00 % |
2010 | 9.60 | 2.13 % |
2011 | 12.00 | 25.00 % |
2012 | 12.00 | 0.00 % |
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