|
| year | consumption | change |
| 1980 | 75.00 | NA |
| 1981 | 137.00 | 82.67 % |
| 1982 | 148.00 | 8.03 % |
| 1983 | 149.00 | 0.68 % |
| 1984 | 153.00 | 2.68 % |
| 1985 | 185.00 | 20.92 % |
| 1986 | 207.00 | 11.89 % |
| 1987 | 211.00 | 1.93 % |
| 1988 | 237.17 | 12.40 % |
| 1989 | 242.40 | 2.21 % |
| 1990 | 243.10 | 0.29 % |
| 1991 | 302.03 | 24.24 % |
| 1992 | 305.16 | 1.04 % |
| 1993 | 309.67 | 1.48 % |
| 1994 | 317.77 | 2.62 % |
| 1995 | 315.86 | -0.60 % |
| 1996 | 305.57 | -3.26 % |
| 1997 | 317.26 | 3.82 % |
| 1998 | 322.48 | 1.65 % |
| 1999 | 323.86 | 0.43 % |
| 2000 | 330.48 | 2.04 % |
| 2001 | 324.65 | -1.77 % |
| 2002 | 334.63 | 3.07 % |
| 2003 | 333.01 | -0.48 % |
| 2004 | 351.14 | 5.44 % |
| 2005 | 374.23 | 6.58 % |
| 2006 | 448.49 | 19.84 % |
| 2007 | 477.58 | 6.49 % |
| 2008 | 620.04 | 29.83 % |
| 2009 | 565.90 | -8.73 % |
| 2010 | 618.25 | 9.25 % |
| 2011 | 487.00 | -21.23 % |
|
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