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year | consumption | change |
1980 | 4.55 | NA |
1981 | 4.67 | 2.54% |
1982 | 4.87 | 4.29% |
1983 | 4.91 | 0.97% |
1984 | 5.20 | 5.78% |
1985 | 5.39 | 3.68% |
1986 | 5.56 | 3.19% |
1987 | 5.79 | 4.07% |
1988 | 6.06 | 4.67% |
1989 | 6.47 | 6.82% |
1990 | 6.84 | 5.72% |
1991 | 7.02 | 2.65% |
1992 | 7.24 | 3.08% |
1993 | 7.80 | 7.75% |
1994 | 7.93 | 1.68% |
1995 | 8.27 | 4.30% |
1996 | 8.82 | 6.64% |
1997 | 9.07 | 2.81% |
1998 | 8.84 | -2.53% |
1999 | 9.43 | 6.71% |
2000 | 9.72 | 3.02% |
2001 | 9.91 | 1.99% |
2002 | 10.24 | 3.38% |
2003 | 10.23 | -0.14% |
2004 | 11.04 | 7.91% |
2005 | 11.40 | 3.30% |
2006 | 11.88 | 4.17% |
2007 | 12.23 | 2.95% |
2008 | 12.34 | 0.92% |
2009 | 13.02 | 5.52% |
2010 | 13.39 | 2.85% |
2011 | 12.82 | -4.24% |
2012 | 13.20 | 2.92% |
2013 | 13.14 | -0.46% |
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