|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 50.00 | NA |
| 1987 | 50.00 | 0.00 % |
| 1988 | 50.00 | 0.00 % |
| 1989 | 50.00 | 0.00 % |
| 1990 | 50.00 | 0.00 % |
| 1991 | 50.00 | 0.00 % |
| 1992 | 50.00 | 0.00 % |
| 1993 | 50.00 | 0.00 % |
| 1994 | 50.00 | 0.00 % |
| 1995 | 50.00 | 0.00 % |
| 1996 | 50.00 | 0.00 % |
| 1997 | 50.00 | 0.00 % |
| 1998 | 50.00 | 0.00 % |
| 1999 | 24.11 | -51.78 % |
| 2000 | 25.43 | 5.48 % |
| 2001 | 53.65 | 110.97 % |
| 2002 | 46.93 | -12.53 % |
| 2003 | 45.80 | -2.40 % |
| 2004 | 50.00 | 9.17 % |
| 2005 | 49.02 | -1.95 % |
| 2006 | 53.59 | 9.31 % |
| 2007 | 47.60 | -11.17 % |
| 2008 | 9.20 | -80.68 % |
| 2009 | 51.33 | 458.14 % |
| 2010 | 56.89 | 10.84 % |
|
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