|
| 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 | 100,107.50 | NA |
| 1993 | 91,505.07 | -8.59 % |
| 1994 | 87,641.47 | -4.22 % |
| 1995 | 72,361.23 | -17.43 % |
| 1996 | 64,720.01 | -10.56 % |
| 1997 | 54,227.11 | -16.21 % |
| 1998 | 54,343.95 | 0.22 % |
| 1999 | 50,989.62 | -6.17 % |
| 2000 | 49,238.04 | -3.44 % |
| 2001 | 52,736.78 | 7.11 % |
| 2002 | 54,317.50 | 3.00 % |
| 2003 | 59,202.94 | 8.99 % |
| 2004 | 69,144.69 | 16.79 % |
| 2005 | 71,368.05 | 3.22 % |
| 2006 | 76,565.45 | 7.28 % |
| 2007 | 81,095.95 | 5.92 % |
| 2008 | 87,042.91 | 7.33 % |
| 2009 | 80,357.40 | -7.68 % |
| 2010 | 86,714.42 | 7.91 % |
| 2011 | 92,076.07 | 6.18 % |
|
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