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year | consumption | change |
1994 | 1.80 | NA |
1995 | 2.20 | 22.22% |
1996 | 2.30 | 4.55% |
1997 | 2.40 | 4.35% |
1998 | 2.50 | 4.17% |
1999 | 2.70 | 8.00% |
2000 | 2.30 | -14.81% |
2001 | 2.40 | 4.35% |
2002 | 2.20 | -8.33% |
2003 | 2.60 | 18.18% |
2004 | 2.30 | -11.54% |
2005 | 2.00 | -13.04% |
2006 | 1.90 | -5.00% |
2007 | 1.90 | 0.00% |
2008 | 1.10 | -42.11% |
2009 | 1.60 | 45.45% |
2010 | 3.00 | 87.50% |
2011 | 1.50 | -50.00% |
2012 | 1.60 | 6.67% |
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