|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 764.86 | NA |
| 1993 | 675.90 | -11.63 % |
| 1994 | 607.50 | -10.12 % |
| 1995 | 609.44 | 0.32 % |
| 1996 | 564.01 | -7.46 % |
| 1997 | 530.50 | -5.94 % |
| 1998 | 577.14 | 8.79 % |
| 1999 | 568.40 | -1.51 % |
| 2000 | 542.07 | -4.63 % |
| 2001 | 557.00 | 2.75 % |
| 2002 | 600.14 | 7.74 % |
| 2003 | 599.72 | -0.07 % |
| 2004 | 616.47 | 2.79 % |
| 2005 | 606.03 | -1.69 % |
| 2006 | 655.95 | 8.24 % |
| 2007 | 672.05 | 2.45 % |
| 2008 | 737.86 | 9.79 % |
| 2009 | 730.99 | -0.93 % |
| 2010 | 779.57 | 6.65 % |
|
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