|
| 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 | 78,854.95 | NA |
| 1994 | 72,771.29 | -7.71 % |
| 1995 | 71,435.29 | -1.84 % |
| 1996 | 71,130.39 | -0.43 % |
| 1997 | 70,029.84 | -1.55 % |
| 1998 | 64,519.39 | -7.87 % |
| 1999 | 56,045.92 | -13.13 % |
| 2000 | 67,044.78 | 19.62 % |
| 2001 | 64,751.97 | -3.42 % |
| 2002 | 62,490.03 | -3.49 % |
| 2003 | 64,165.54 | 2.68 % |
| 2004 | 60,413.28 | -5.85 % |
| 2005 | 62,148.31 | 2.87 % |
| 2006 | 63,511.88 | 2.19 % |
| 2007 | 64,250.42 | 1.16 % |
| 2008 | 59,851.10 | -6.85 % |
| 2009 | 56,206.86 | -6.09 % |
| 2010 | 56,885.88 | 1.21 % |
| 2011 | 54,510.40 | -4.18 % |
|
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