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year | consumption | change |
1986 | 1.50 | NA |
1987 | 1.40 | -6.67 % |
1988 | 1.90 | 35.71 % |
1989 | 2.00 | 5.26 % |
1990 | 2.00 | 0.00 % |
1991 | 2.10 | 5.00 % |
1992 | 2.10 | 0.00 % |
1993 | 2.20 | 4.76 % |
1994 | 2.30 | 4.55 % |
1995 | 2.20 | -4.35 % |
1996 | 2.20 | 0.00 % |
1997 | 2.20 | 0.00 % |
1998 | 3.30 | 50.00 % |
1999 | 3.30 | 0.00 % |
2000 | 3.40 | 3.03 % |
2001 | 3.40 | 0.00 % |
2002 | 3.60 | 5.88 % |
2003 | 3.40 | -5.56 % |
2004 | 3.90 | 14.71 % |
2005 | 4.00 | 2.56 % |
2006 | 3.20 | -20.00 % |
2007 | 3.40 | 6.25 % |
2008 | 7.10 | 108.82 % |
2009 | 6.40 | -9.86 % |
2010 | 7.20 | 12.50 % |
2011 | 6.40 | -11.11 % |
2012 | 6.40 | 0.00 % |
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