|
| year | consumption | change |
| 1984 | 717.27 | NA |
| 1985 | 696.18 | -2.94 % |
| 1986 | 2,124.08 | 205.11 % |
| 1987 | 1,741.23 | -18.02 % |
| 1988 | 1,702.43 | -2.23 % |
| 1989 | 1,588.79 | -6.68 % |
| 1990 | 1,624.06 | 2.22 % |
| 1991 | 1,590.16 | -2.09 % |
| 1992 | 1,717.24 | 7.99 % |
| 1993 | 1,728.67 | 0.67 % |
| 1994 | 1,755.80 | 1.57 % |
| 1995 | 1,820.25 | 3.67 % |
| 1996 | 1,866.83 | 2.56 % |
| 1997 | 1,839.34 | -1.47 % |
| 1998 | 1,823.21 | -0.88 % |
| 1999 | 1,820.35 | -0.16 % |
| 2000 | 1,890.85 | 3.87 % |
| 2001 | 1,874.98 | -0.84 % |
| 2002 | 1,767.49 | -5.73 % |
| 2003 | 1,712.60 | -3.11 % |
| 2004 | 1,629.33 | -4.86 % |
| 2005 | 1,702.66 | 4.50 % |
| 2006 | 1,561.09 | -8.31 % |
| 2007 | 1,272.80 | -18.47 % |
| 2008 | 1,278.57 | 0.45 % |
| 2009 | 1,203.25 | -5.89 % |
| 2010 | 1,230.58 | 2.27 % |
|
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