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year | consumption | change |
1980 | 23.00 | NA |
1981 | 22.00 | -4.35% |
1982 | 22.00 | 0.00% |
1983 | 21.00 | -4.55% |
1984 | 21.00 | 0.00% |
1985 | 22.00 | 4.76% |
1986 | 24.00 | 9.09% |
1987 | 27.00 | 12.50% |
1988 | 27.00 | 0.00% |
1989 | 30.00 | 11.11% |
1990 | 33.00 | 10.00% |
1991 | 39.00 | 18.18% |
1992 | 40.00 | 2.56% |
1993 | 40.00 | 0.00% |
1994 | 40.00 | 0.00% |
1995 | 37.00 | -7.50% |
1996 | 39.00 | 5.41% |
1997 | 41.00 | 5.13% |
1998 | 42.00 | 2.44% |
1999 | 45.00 | 7.14% |
2000 | 48.00 | 6.67% |
2001 | 51.00 | 6.25% |
2002 | 52.00 | 1.96% |
2003 | 56.00 | 7.69% |
2004 | 63.00 | 12.50% |
2005 | 65.00 | 3.17% |
2006 | 62.00 | -4.62% |
2007 | 61.00 | -1.61% |
2008 | 61.00 | 0.00% |
2009 | 57.00 | -6.56% |
2010 | 60.00 | 5.26% |
2011 | 61.00 | 1.67% |
2012 | 59.00 | -3.28% |
2013 | 58.00 | -1.69% |
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