|
| year | consumption | change |
| 1984 | 2,256.14 | NA |
| 1985 | 2,295.63 | 1.75 % |
| 1986 | 2,475.52 | 7.84 % |
| 1987 | 2,546.82 | 2.88 % |
| 1988 | 2,595.36 | 1.91 % |
| 1989 | 2,591.19 | -0.16 % |
| 1990 | 2,719.13 | 4.94 % |
| 1991 | 2,644.67 | -2.74 % |
| 1992 | 2,747.78 | 3.90 % |
| 1993 | 2,766.18 | 0.67 % |
| 1994 | 2,820.74 | 1.97 % |
| 1995 | 2,788.27 | -1.15 % |
| 1996 | 2,831.39 | 1.55 % |
| 1997 | 2,976.31 | 5.12 % |
| 1998 | 3,105.83 | 4.35 % |
| 1999 | 3,154.02 | 1.55 % |
| 2000 | 3,041.23 | -3.58 % |
| 2001 | 2,966.24 | -2.47 % |
| 2002 | 3,064.88 | 3.33 % |
| 2003 | 3,168.04 | 3.37 % |
| 2004 | 3,389.15 | 6.98 % |
| 2005 | 3,309.02 | -2.36 % |
| 2006 | 3,346.62 | 1.14 % |
| 2007 | 3,228.28 | -3.54 % |
| 2008 | 2,941.05 | -8.90 % |
| 2009 | 2,633.45 | -10.46 % |
| 2010 | 2,670.50 | 1.41 % |
|
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