|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | 94.10 | NA |
| 1992 | 94.00 | -0.11 % |
| 1993 | 95.98 | 2.10 % |
| 1994 | 109.25 | 13.82 % |
| 1995 | 106.72 | -2.31 % |
| 1996 | 104.87 | -1.73 % |
| 1997 | 97.61 | -6.93 % |
| 1998 | 91.78 | -5.98 % |
| 1999 | 84.40 | -8.04 % |
| 2000 | 86.56 | 2.56 % |
| 2001 | 89.88 | 3.83 % |
| 2002 | 83.45 | -7.15 % |
| 2003 | 85.64 | 2.62 % |
| 2004 | 86.76 | 1.31 % |
| 2005 | 90.56 | 4.38 % |
| 2006 | 91.83 | 1.41 % |
| 2007 | 95.30 | 3.78 % |
| 2008 | 101.61 | 6.62 % |
| 2009 | 98.36 | -3.20 % |
| 2010 | 102.78 | 4.49 % |
|
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