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year | consumption | change |
1980 | 9.17 | NA |
1981 | 9.16 | -0.04% |
1982 | 9.32 | 1.74% |
1983 | 9.28 | -0.43% |
1984 | 9.93 | 7.04% |
1985 | 10.18 | 2.48% |
1986 | 11.08 | 8.82% |
1987 | 11.31 | 2.07% |
1988 | 11.62 | 2.76% |
1989 | 11.99 | 3.21% |
1990 | 12.40 | 3.44% |
1991 | 12.86 | 3.64% |
1992 | 13.12 | 2.05% |
1993 | 13.79 | 5.15% |
1994 | 14.47 | 4.90% |
1995 | 15.11 | 4.40% |
1996 | 15.93 | 5.46% |
1997 | 16.69 | 4.75% |
1998 | 17.34 | 3.92% |
1999 | 17.29 | -0.28% |
2000 | 17.79 | 2.89% |
2001 | 17.94 | 0.81% |
2002 | 17.84 | -0.56% |
2003 | 18.07 | 1.28% |
2004 | 18.89 | 4.54% |
2005 | 19.76 | 4.63% |
2006 | 20.63 | 4.39% |
2007 | 20.97 | 1.67% |
2008 | 22.06 | 5.20% |
2009 | 21.86 | -0.90% |
2010 | 23.18 | 6.00% |
2011 | 24.35 | 5.07% |
2012 | 24.80 | 1.85% |
2013 | 25.08 | 1.13% |
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