|
| year | consumption | change |
| 1980 | 537.00 | NA |
| 1981 | 536.00 | -0.19 % |
| 1982 | 534.00 | -0.37 % |
| 1983 | 561.00 | 5.06 % |
| 1984 | 554.00 | -1.25 % |
| 1985 | 552.00 | -0.36 % |
| 1986 | 592.00 | 7.25 % |
| 1987 | 627.00 | 5.91 % |
| 1988 | 746.00 | 18.98 % |
| 1989 | 860.00 | 15.28 % |
| 1990 | 1,048.00 | 21.86 % |
| 1991 | 1,263.00 | 20.52 % |
| 1992 | 1,527.00 | 20.90 % |
| 1993 | 1,684.00 | 10.28 % |
| 1994 | 1,840.00 | 9.26 % |
| 1995 | 2,008.00 | 9.13 % |
| 1996 | 2,101.00 | 4.63 % |
| 1997 | 2,255.00 | 7.33 % |
| 1998 | 1,917.00 | -14.99 % |
| 1999 | 2,084.00 | 8.71 % |
| 2000 | 2,135.33 | 2.46 % |
| 2001 | 2,132.04 | -0.15 % |
| 2002 | 2,149.15 | 0.80 % |
| 2003 | 2,175.38 | 1.22 % |
| 2004 | 2,155.12 | -0.93 % |
| 2005 | 2,191.34 | 1.68 % |
| 2006 | 2,179.90 | -0.52 % |
| 2007 | 2,240.51 | 2.78 % |
| 2008 | 2,142.31 | -4.38 % |
| 2009 | 2,188.26 | 2.14 % |
| 2010 | 2,268.35 | 3.66 % |
| 2011 | 2,230.17 | -1.68 % |
|
|