|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 65.76 | NA |
| 1987 | 73.06 | 11.10 % |
| 1988 | 68.51 | -6.22 % |
| 1989 | 67.19 | -1.92 % |
| 1990 | 90.70 | 34.98 % |
| 1991 | 92.07 | 1.51 % |
| 1992 | 99.47 | 8.04 % |
| 1993 | 98.90 | -0.58 % |
| 1994 | 78.21 | -20.92 % |
| 1995 | 86.45 | 10.53 % |
| 1996 | 84.24 | -2.56 % |
| 1997 | 132.79 | 57.64 % |
| 1998 | 129.45 | -2.52 % |
| 1999 | 122.51 | -5.36 % |
| 2000 | 133.60 | 9.05 % |
| 2001 | 119.40 | -10.63 % |
| 2002 | 130.92 | 9.65 % |
| 2003 | 125.34 | -4.26 % |
| 2004 | 98.88 | -21.10 % |
| 2005 | 120.43 | 21.79 % |
| 2006 | 102.03 | -15.27 % |
| 2007 | 107.14 | 5.01 % |
| 2008 | 117.38 | 9.55 % |
| 2009 | 99.24 | -15.45 % |
| 2010 | 105.32 | 6.12 % |
|
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