|
| year | consumption | change |
| 1984 | 2,844.86 | NA |
| 1985 | 2,868.02 | 0.81 % |
| 1986 | 2,914.36 | 1.62 % |
| 1987 | 2,976.47 | 2.13 % |
| 1988 | 3,121.61 | 4.88 % |
| 1989 | 3,156.78 | 1.13 % |
| 1990 | 3,020.56 | -4.32 % |
| 1991 | 2,920.77 | -3.30 % |
| 1992 | 2,978.89 | 1.99 % |
| 1993 | 3,041.21 | 2.09 % |
| 1994 | 3,162.24 | 3.98 % |
| 1995 | 3,206.63 | 1.40 % |
| 1996 | 3,365.24 | 4.95 % |
| 1997 | 3,435.45 | 2.09 % |
| 1998 | 3,461.44 | 0.76 % |
| 1999 | 3,572.00 | 3.19 % |
| 2000 | 3,722.17 | 4.20 % |
| 2001 | 3,846.80 | 3.35 % |
| 2002 | 3,775.91 | -1.84 % |
| 2003 | 3,927.05 | 4.00 % |
| 2004 | 4,058.26 | 3.34 % |
| 2005 | 4,118.01 | 1.47 % |
| 2006 | 4,169.13 | 1.24 % |
| 2007 | 4,195.91 | 0.64 % |
| 2008 | 3,945.42 | -5.97 % |
| 2009 | 3,631.08 | -7.97 % |
| 2010 | 3,800.32 | 4.66 % |
|
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