|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 123.72 | NA |
| 1987 | 123.10 | -0.50 % |
| 1988 | 142.00 | 15.36 % |
| 1989 | 145.75 | 2.64 % |
| 1990 | 144.98 | -0.53 % |
| 1991 | 181.30 | 25.05 % |
| 1992 | 179.36 | -1.07 % |
| 1993 | 178.27 | -0.61 % |
| 1994 | 181.39 | 1.75 % |
| 1995 | 193.75 | 6.81 % |
| 1996 | 184.00 | -5.03 % |
| 1997 | 215.08 | 16.89 % |
| 1998 | 225.70 | 4.93 % |
| 1999 | 232.26 | 2.91 % |
| 2000 | 132.93 | -42.77 % |
| 2001 | 169.26 | 27.33 % |
| 2002 | 187.57 | 10.82 % |
| 2003 | 161.90 | -13.69 % |
| 2004 | 154.27 | -4.71 % |
| 2005 | 168.70 | 9.35 % |
| 2006 | 173.88 | 3.07 % |
| 2007 | 189.86 | 9.19 % |
| 2008 | 307.00 | 61.70 % |
| 2009 | 255.34 | -16.83 % |
| 2010 | 269.02 | 5.35 % |
|
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