|
| 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 | 2,734.83 | NA |
| 1993 | 2,444.93 | -10.60 % |
| 1994 | 2,237.69 | -8.48 % |
| 1995 | 1,298.52 | -41.97 % |
| 1996 | 1,119.95 | -13.75 % |
| 1997 | 1,356.95 | 21.16 % |
| 1998 | 1,350.33 | -0.49 % |
| 1999 | 1,343.72 | -0.49 % |
| 2000 | 1,288.60 | -4.10 % |
| 2001 | 874.13 | -32.16 % |
| 2002 | 1,369.07 | 56.62 % |
| 2003 | 1,612.68 | 17.79 % |
| 2004 | 1,585.12 | -1.71 % |
| 2005 | 1,477.10 | -6.82 % |
| 2006 | 1,381.20 | -6.49 % |
| 2007 | 1,122.15 | -18.75 % |
| 2008 | 1,100.11 | -1.96 % |
| 2009 | 1,142.00 | 3.81 % |
| 2010 | 1,263.25 | 10.62 % |
| 2011 | 1,553.16 | 22.95 % |
|
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