|
| year | consumption | change |
| 1984 | 7,769.96 | NA |
| 1985 | 7,926.39 | 2.01 % |
| 1986 | 13,599.12 | 71.57 % |
| 1987 | 14,058.40 | 3.38 % |
| 1988 | 14,420.00 | 2.57 % |
| 1989 | 15,065.23 | 4.47 % |
| 1990 | 15,284.07 | 1.45 % |
| 1991 | 16,664.11 | 9.03 % |
| 1992 | 16,870.10 | 1.24 % |
| 1993 | 17,596.45 | 4.31 % |
| 1994 | 17,826.85 | 1.31 % |
| 1995 | 18,160.26 | 1.87 % |
| 1996 | 18,502.77 | 1.89 % |
| 1997 | 19,248.30 | 4.03 % |
| 1998 | 19,054.86 | -1.00 % |
| 1999 | 19,713.94 | 3.46 % |
| 2000 | 20,379.69 | 3.38 % |
| 2001 | 21,340.08 | 4.71 % |
| 2002 | 20,946.30 | -1.85 % |
| 2003 | 21,609.63 | 3.17 % |
| 2004 | 22,560.92 | 4.40 % |
| 2005 | 23,156.82 | 2.64 % |
| 2006 | 23,772.61 | 2.66 % |
| 2007 | 24,294.74 | 2.20 % |
| 2008 | 24,723.53 | 1.76 % |
| 2009 | 24,266.55 | -1.85 % |
| 2010 | 24,986.35 | 2.97 % |
|
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