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year | consumption | change |
1980 | 1.50 | NA |
1981 | 1.20 | -20.00 % |
1982 | 1.10 | -8.33 % |
1983 | 1.90 | 72.73 % |
1984 | 2.00 | 5.26 % |
1985 | 2.10 | 5.00 % |
1986 | 2.10 | 0.00 % |
1987 | 2.20 | 4.76 % |
1988 | 3.10 | 40.91 % |
1989 | 3.20 | 3.23 % |
1990 | 3.00 | -6.25 % |
1991 | 3.20 | 6.67 % |
1992 | 3.30 | 3.13 % |
1993 | 3.40 | 3.03 % |
1994 | 3.40 | 0.00 % |
1995 | 3.50 | 2.94 % |
1996 | 3.40 | -2.86 % |
1997 | 3.70 | 8.82 % |
1998 | 3.70 | 0.00 % |
1999 | 3.70 | 0.00 % |
2000 | 3.80 | 2.70 % |
2001 | 4.00 | 5.26 % |
2002 | 5.70 | 42.50 % |
2003 | 5.50 | -3.51 % |
2004 | 5.80 | 5.45 % |
2005 | 5.70 | -1.72 % |
2006 | 7.70 | 35.09 % |
2007 | 6.40 | -16.88 % |
2008 | 6.90 | 7.81 % |
2009 | 7.50 | 8.70 % |
2010 | 6.80 | -9.33 % |
2011 | 6.80 | 0.00 % |
2012 | 6.80 | 0.00 % |
2013 | 6.80 | 0.00 % |
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