|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 61.77 | NA |
| 1987 | 59.63 | -3.47 % |
| 1988 | 62.87 | 5.43 % |
| 1989 | 73.00 | 16.12 % |
| 1990 | 88.26 | 20.90 % |
| 1991 | 97.94 | 10.96 % |
| 1992 | 104.13 | 6.33 % |
| 1993 | 108.41 | 4.11 % |
| 1994 | 128.40 | 18.44 % |
| 1995 | 139.04 | 8.28 % |
| 1996 | 146.82 | 5.60 % |
| 1997 | 143.96 | -1.95 % |
| 1998 | 128.51 | -10.73 % |
| 1999 | 136.21 | 5.99 % |
| 2000 | 156.69 | 15.03 % |
| 2001 | 166.36 | 6.17 % |
| 2002 | 161.91 | -2.67 % |
| 2003 | 178.59 | 10.30 % |
| 2004 | 184.30 | 3.20 % |
| 2005 | 195.64 | 6.15 % |
| 2006 | 175.08 | -10.51 % |
| 2007 | 184.37 | 5.31 % |
| 2008 | 197.50 | 7.12 % |
| 2009 | 180.55 | -8.58 % |
| 2010 | 173.11 | -4.12 % |
|
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