|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.97 | NA |
| 1987 | 1.07 | -78.52 % |
| 1988 | 1.15 | 7.61 % |
| 1989 | 1.32 | 14.66 % |
| 1990 | 1.36 | 3.14 % |
| 1991 | 1.22 | -10.42 % |
| 1992 | 1.53 | 25.53 % |
| 1993 | 1.53 | 0.27 % |
| 1994 | 1.43 | -6.67 % |
| 1995 | 1.43 | 0.00 % |
| 1996 | 1.49 | 4.00 % |
| 1997 | 1.49 | 0.27 % |
| 1998 | 1.51 | 1.37 % |
| 1999 | 1.51 | 0.00 % |
| 2000 | 1.47 | -2.97 % |
| 2001 | 1.47 | 0.27 % |
| 2002 | 1.84 | 25.00 % |
| 2003 | 1.84 | 0.00 % |
| 2004 | 2.06 | 11.92 % |
| 2005 | 2.11 | 2.26 % |
| 2006 | 3.62 | 71.84 % |
| 2007 | 2.90 | -19.77 % |
| 2008 | 3.09 | 6.34 % |
| 2009 | 4.42 | 43.27 % |
| 2010 | 4.42 | 0.00 % |
|
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