|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 3.39 | NA |
| 1987 | | NA |
| 1988 | 3.88 | NA |
| 1989 | 4.34 | 11.96 % |
| 1990 | 3.41 | -21.50 % |
| 1991 | 4.80 | 40.76 % |
| 1992 | 6.82 | 42.12 % |
| 1993 | 4.96 | -27.36 % |
| 1994 | 6.46 | 30.34 % |
| 1995 | 8.68 | 34.43 % |
| 1996 | 5.64 | -35.06 % |
| 1997 | 11.68 | 107.12 % |
| 1998 | 10.44 | -10.65 % |
| 1999 | 7.33 | -29.79 % |
| 2000 | 14.38 | 96.28 % |
| 2001 | 14.61 | 1.60 % |
| 2002 | 13.47 | -7.83 % |
| 2003 | | NA |
| 2004 | 3.35 | NA |
| 2005 | 11.93 | 256.21 % |
| 2006 | 5.04 | -57.76 % |
| 2007 | 23.51 | 366.39 % |
| 2008 | | NA |
| 2009 | 7.69 | NA |
| 2010 | 23.78 | 209.37 % |
|
|
