|
| year | consumption | change |
| 1980 | 20,031.20 | NA |
| 1981 | 24,571.62 | 22.67 % |
| 1982 | 24,386.43 | -0.75 % |
| 1983 | 19,876.88 | -18.49 % |
| 1984 | 22,667.93 | 14.04 % |
| 1985 | 22,385.74 | -1.24 % |
| 1986 | 19,535.16 | -12.73 % |
| 1987 | 18,345.77 | -6.09 % |
| 1988 | 15,013.48 | -18.16 % |
| 1989 | 18,145.15 | 20.86 % |
| 1990 | 18,033.81 | -0.61 % |
| 1991 | 17,035.67 | -5.53 % |
| 1992 | 15,458.81 | -9.26 % |
| 1993 | 14,080.93 | -8.91 % |
| 1994 | 15,081.82 | 7.11 % |
| 1995 | 14,416.03 | -4.41 % |
| 1996 | 13,932.11 | -3.36 % |
| 1997 | 13,530.87 | -2.88 % |
| 1998 | 13,599.21 | 0.51 % |
| 1999 | 11,901.66 | -12.48 % |
| 2000 | 13,326.94 | 11.98 % |
| 2001 | 12,249.99 | -8.08 % |
| 2002 | 10,587.70 | -13.57 % |
| 2003 | 9,881.12 | -6.67 % |
| 2004 | 9,638.61 | -2.45 % |
| 2005 | 8,655.35 | -10.20 % |
| 2006 | 8,201.20 | -5.25 % |
| 2007 | 7,330.37 | -10.62 % |
| 2008 | 7,490.21 | 2.18 % |
| 2009 | 5,176.45 | -30.89 % |
| 2010 | 5,488.41 | 6.03 % |
| 2011 | 4,443.42 | -19.04 % |
|
|
