|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 310.87 | NA |
| 1993 | 212.65 | -31.60 % |
| 1994 | 165.73 | -22.06 % |
| 1995 | 153.81 | -7.20 % |
| 1996 | 119.16 | -22.53 % |
| 1997 | 106.56 | -10.57 % |
| 1998 | 100.11 | -6.05 % |
| 1999 | 108.36 | 8.24 % |
| 2000 | 44.63 | -58.81 % |
| 2001 | 60.09 | 34.65 % |
| 2002 | 94.84 | 57.83 % |
| 2003 | 17.92 | -81.10 % |
| 2004 | 24.76 | 38.17 % |
| 2005 | 30.48 | 23.07 % |
| 2006 | 22.01 | -27.78 % |
| 2007 | 19.87 | -9.72 % |
| 2008 | 17.10 | -13.96 % |
| 2009 | 36.15 | 111.42 % |
| 2010 | 20.88 | -42.23 % |
|
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