|
| year | consumption | change |
| 1980 | 184.00 | NA |
| 1981 | 157.15 | -14.59 % |
| 1982 | 186.00 | 18.36 % |
| 1983 | 174.10 | -6.40 % |
| 1984 | 209.00 | 20.05 % |
| 1985 | 191.00 | -8.61 % |
| 1986 | 193.00 | 1.05 % |
| 1987 | 198.10 | 2.64 % |
| 1988 | 206.95 | 4.47 % |
| 1989 | 215.07 | 3.92 % |
| 1990 | 276.00 | 28.33 % |
| 1991 | 328.00 | 18.84 % |
| 1992 | 400.83 | 22.20 % |
| 1993 | 476.75 | 18.94 % |
| 1994 | 476.74 | 0.00 % |
| 1995 | 476.75 | 0.00 % |
| 1996 | 483.82 | 1.48 % |
| 1997 | 513.48 | 6.13 % |
| 1998 | 522.31 | 1.72 % |
| 1999 | 492.64 | -5.68 % |
| 2000 | 531.84 | 7.96 % |
| 2001 | 386.70 | -27.29 % |
| 2002 | 392.35 | 1.46 % |
| 2003 | 431.20 | 9.90 % |
| 2004 | 530.78 | 23.10 % |
| 2005 | 660.39 | 24.42 % |
| 2006 | 692.53 | 4.87 % |
| 2007 | 695.71 | 0.46 % |
| 2008 | 713.40 | 2.54 % |
| 2009 | 745.15 | 4.45 % |
| 2010 | 769.87 | 3.32 % |
| 2011 | 689.70 | -10.41 % |
|
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