|
| year | consumption | change |
| 1984 | 608.43 | NA |
| 1985 | 608.49 | 0.01 % |
| 1986 | 905.82 | 48.86 % |
| 1987 | 952.91 | 5.20 % |
| 1988 | 943.98 | -0.94 % |
| 1989 | 1,065.50 | 12.87 % |
| 1990 | 1,351.08 | 26.80 % |
| 1991 | 1,395.22 | 3.27 % |
| 1992 | 1,563.77 | 12.08 % |
| 1993 | 1,689.15 | 8.02 % |
| 1994 | 1,743.10 | 3.19 % |
| 1995 | 1,854.79 | 6.41 % |
| 1996 | 2,018.09 | 8.80 % |
| 1997 | 2,074.85 | 2.81 % |
| 1998 | 2,047.72 | -1.31 % |
| 1999 | 1,864.72 | -8.94 % |
| 2000 | 2,192.27 | 17.57 % |
| 2001 | 2,281.02 | 4.05 % |
| 2002 | 2,489.50 | 9.14 % |
| 2003 | 2,626.88 | 5.52 % |
| 2004 | 2,715.52 | 3.37 % |
| 2005 | 2,631.94 | -3.08 % |
| 2006 | 2,591.28 | -1.54 % |
| 2007 | 3,079.88 | 18.86 % |
| 2008 | 2,911.64 | -5.46 % |
| 2009 | 2,772.29 | -4.79 % |
| 2010 | 3,220.59 | 16.17 % |
|
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