|
| year | consumption | change |
| 1980 | | NA |
| 1981 | | NA |
| 1982 | | NA |
| 1983 | | NA |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | | NA |
| 1993 | | NA |
| 1994 | | NA |
| 1995 | 1.41 | NA |
| 1996 | 19.42 | 1,277.54 % |
| 1997 | 21.19 | 9.09 % |
| 1998 | 28.25 | 33.33 % |
| 1999 | 47.32 | 67.50 % |
| 2000 | 47.68 | 0.75 % |
| 2001 | 47.68 | 0.00 % |
| 2002 | 47.32 | -0.74 % |
| 2003 | 47.32 | 0.00 % |
| 2004 | 45.91 | -2.99 % |
| 2005 | 45.91 | 0.00 % |
| 2006 | 45.91 | 0.00 % |
| 2007 | 52.97 | 15.38 % |
| 2008 | 56.50 | 6.67 % |
| 2009 | 56.50 | 0.00 % |
| 2010 | 52.97 | -6.25 % |
| 2011 | 52.97 | 0.00 % |
|
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