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year | consumption | change |
1980 | 12.00 | NA |
1981 | 12.00 | 0.00 % |
1982 | 14.00 | 16.67 % |
1983 | 14.00 | 0.00 % |
1984 | 15.00 | 7.14 % |
1985 | 16.00 | 6.67 % |
1986 | 17.00 | 6.25 % |
1987 | 17.00 | 0.00 % |
1988 | 17.00 | 0.00 % |
1989 | 17.00 | 0.00 % |
1990 | 16.00 | -5.88 % |
1991 | 15.00 | -6.25 % |
1992 | 13.00 | -13.33 % |
1993 | 13.00 | 0.00 % |
1994 | 13.00 | 0.00 % |
1995 | 11.00 | -15.38 % |
1996 | 12.00 | 9.09 % |
1997 | 8.00 | -33.33 % |
1998 | 8.50 | 6.25 % |
1999 | 8.70 | 2.35 % |
2000 | 8.50 | -2.30 % |
2001 | 9.90 | 16.47 % |
2002 | 11.00 | 11.11 % |
2003 | 10.00 | -9.09 % |
2004 | 12.00 | 20.00 % |
2005 | 13.00 | 8.33 % |
2006 | 14.00 | 7.69 % |
2007 | 15.00 | 7.14 % |
2008 | 18.00 | 20.00 % |
2009 | 17.00 | -5.56 % |
2010 | 17.00 | 0.00 % |
2011 | 22.00 | 29.41 % |
2012 | 25.00 | 13.64 % |
2013 | 24.00 | -4.00 % |
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