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year | consumption | change |
1986 | 9.20 | NA |
1987 | 9.70 | 5.43 % |
1988 | 11.00 | 13.40 % |
1989 | 13.00 | 18.18 % |
1990 | 12.00 | -7.69 % |
1991 | 13.00 | 8.33 % |
1992 | 14.00 | 7.69 % |
1993 | 15.00 | 7.14 % |
1994 | 16.00 | 6.67 % |
1995 | 15.00 | -6.25 % |
1996 | 15.00 | 0.00 % |
1997 | 17.00 | 13.33 % |
1998 | 18.00 | 5.88 % |
1999 | 19.00 | 5.56 % |
2000 | 18.00 | -5.26 % |
2001 | 20.00 | 11.11 % |
2002 | 20.00 | 0.00 % |
2003 | 19.00 | -5.00 % |
2004 | 19.00 | 0.00 % |
2005 | 21.00 | 10.53 % |
2006 | 26.00 | 23.81 % |
2007 | 26.00 | 0.00 % |
2008 | 27.00 | 3.85 % |
2009 | 25.00 | -7.41 % |
2010 | 23.00 | -8.00 % |
2011 | 23.00 | 0.00 % |
2012 | 19.00 | -17.39 % |
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