|
| 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 | 407,944.50 | NA |
| 1992 | 362,204.10 | -11.21 % |
| 1993 | 334,978.10 | -7.52 % |
| 1994 | 314,276.70 | -6.18 % |
| 1995 | 300,723.70 | -4.31 % |
| 1996 | 295,808.60 | -1.63 % |
| 1997 | 281,005.60 | -5.00 % |
| 1998 | 268,773.80 | -4.35 % |
| 1999 | 257,561.70 | -4.17 % |
| 2000 | 269,814.90 | 4.76 % |
| 2001 | 278,151.80 | 3.09 % |
| 2002 | 278,407.30 | 0.09 % |
| 2003 | 277,307.40 | -0.40 % |
| 2004 | 280,407.10 | 1.12 % |
| 2005 | 270,789.40 | -3.43 % |
| 2006 | 270,533.70 | -0.09 % |
| 2007 | 281,443.30 | 4.03 % |
| 2008 | 267,881.50 | -4.82 % |
| 2009 | 247,866.80 | -7.47 % |
| 2010 | 255,957.80 | 3.26 % |
| 2011 | 256,661.10 | 0.27 % |
|
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