|
| year | consumption | change |
| 1980 | 2,830.74 | NA |
| 1981 | 2,451.54 | -13.40 % |
| 1982 | 2,730.43 | 11.38 % |
| 1983 | 3,473.38 | 27.21 % |
| 1984 | 4,182.17 | 20.41 % |
| 1985 | 4,903.08 | 17.24 % |
| 1986 | 5,053.00 | 3.06 % |
| 1987 | 4,963.71 | -1.77 % |
| 1988 | 4,932.84 | -0.62 % |
| 1989 | 4,455.54 | -9.68 % |
| 1990 | 4,463.26 | 0.17 % |
| 1991 | 4,175.56 | -6.45 % |
| 1992 | 3,870.22 | -7.31 % |
| 1993 | 3,960.61 | 2.34 % |
| 1994 | 4,326.00 | 9.23 % |
| 1995 | 4,178.86 | -3.40 % |
| 1996 | 4,447.83 | 6.44 % |
| 1997 | 3,807.38 | -14.40 % |
| 1998 | 3,636.53 | -4.49 % |
| 1999 | 3,504.25 | -3.64 % |
| 2000 | 3,538.42 | 0.98 % |
| 2001 | 3,966.12 | 12.09 % |
| 2002 | 4,003.60 | 0.94 % |
| 2003 | 3,728.02 | -6.88 % |
| 2004 | 4,117.13 | 10.44 % |
| 2005 | 3,703.77 | -10.04 % |
| 2006 | 3,836.04 | 3.57 % |
| 2007 | 3,831.63 | -0.11 % |
| 2008 | 3,310.24 | -13.61 % |
| 2009 | 2,519.88 | -23.88 % |
| 2010 | 3,401.73 | 35.00 % |
| 2011 | 3,464.57 | 1.85 % |
|
|
