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year | consumption | change |
1980 | 3.00 | NA |
1981 | 3.00 | 0.00% |
1982 | 2.00 | -33.33% |
1983 | 3.00 | 50.00% |
1984 | 3.00 | 0.00% |
1985 | 3.50 | 16.67% |
1986 | 3.50 | 0.00% |
1987 | 2.70 | -22.86% |
1988 | 3.20 | 18.52% |
1989 | 3.50 | 9.38% |
1990 | 4.10 | 17.14% |
1991 | 4.70 | 14.63% |
1992 | 5.20 | 10.64% |
1993 | 5.80 | 11.54% |
1994 | 6.10 | 5.17% |
1995 | 6.70 | 9.84% |
1996 | 7.20 | 7.46% |
1997 | 7.80 | 8.33% |
1998 | 8.50 | 8.97% |
1999 | 9.20 | 8.24% |
2000 | 11.00 | 19.57% |
2001 | 11.00 | 0.00% |
2002 | 12.00 | 9.09% |
2003 | 14.00 | 16.67% |
2004 | 17.00 | 21.43% |
2005 | 18.00 | 5.88% |
2006 | 21.00 | 16.67% |
2007 | 23.00 | 9.52% |
2008 | 24.00 | 4.35% |
2009 | 31.00 | 29.17% |
2010 | 35.00 | 12.90% |
2011 | 31.00 | -11.43% |
2012 | 31.00 | 0.00% |
2013 | 31.00 | 0.00% |
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