|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 6.52 | NA |
| 1993 | 6.40 | -1.84 % |
| 1994 | 10.45 | 63.28 % |
| 1995 | 14.42 | 38.03 % |
| 1996 | 9.40 | -34.80 % |
| 1997 | 1.82 | -80.64 % |
| 1998 | 3.04 | 67.10 % |
| 1999 | 2.71 | -10.83 % |
| 2000 | 2.72 | 0.21 % |
| 2001 | 3.99 | 46.57 % |
| 2002 | 4.31 | 8.19 % |
| 2003 | 2.72 | -36.84 % |
| 2004 | 2.73 | 0.41 % |
| 2005 | 2.75 | 0.44 % |
| 2006 | 2.77 | 0.68 % |
| 2007 | 2.54 | -8.06 % |
| 2008 | 2.54 | 0.00 % |
| 2009 | 2.74 | 7.80 % |
| 2010 | 23.84 | 769.74 % |
|
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