|
| year | consumption | change |
| 1984 | 395.08 | NA |
| 1985 | 412.65 | 4.45 % |
| 1986 | 448.05 | 8.58 % |
| 1987 | 477.27 | 6.52 % |
| 1988 | 507.77 | 6.39 % |
| 1989 | 554.53 | 9.21 % |
| 1990 | 552.13 | -0.43 % |
| 1991 | 648.92 | 17.53 % |
| 1992 | 1,059.40 | 63.26 % |
| 1993 | 1,029.91 | -2.78 % |
| 1994 | 998.48 | -3.05 % |
| 1995 | 1,036.78 | 3.84 % |
| 1996 | 1,055.37 | 1.79 % |
| 1997 | 1,051.61 | -0.36 % |
| 1998 | 1,176.86 | 11.91 % |
| 1999 | 1,213.17 | 3.09 % |
| 2000 | 1,258.40 | 3.73 % |
| 2001 | 1,233.34 | -1.99 % |
| 2002 | 1,234.11 | 0.06 % |
| 2003 | 1,262.36 | 2.29 % |
| 2004 | 1,338.57 | 6.04 % |
| 2005 | 1,401.89 | 4.73 % |
| 2006 | 1,411.00 | 0.65 % |
| 2007 | 1,483.76 | 5.16 % |
| 2008 | 1,499.24 | 1.04 % |
| 2009 | 1,393.85 | -7.03 % |
| 2010 | 1,413.32 | 1.40 % |
|
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