|
| year | consumption | change |
| 1980 | .00 | NA |
| 1981 | .00 | 0.00 % |
| 1982 | .00 | 0.00 % |
| 1983 | .00 | 0.00 % |
| 1984 | .00 | 0.00 % |
| 1985 | .00 | 29.41 % |
| 1986 | .00 | 0.00 % |
| 1987 | .00 | 0.00 % |
| 1988 | .00 | 95.45 % |
| 1989 | .00 | -9.30 % |
| 1990 | .00 | -10.26 % |
| 1991 | .00 | 0.00 % |
| 1992 | .00 | 0.00 % |
| 1993 | .00 | 0.00 % |
| 1994 | .00 | 0.00 % |
| 1995 | .00 | 11.43 % |
| 1996 | .00 | 12.82 % |
| 1997 | .00 | 9.09 % |
| 1998 | .00 | -18.75 % |
| 1999 | .00 | 0.00 % |
| 2000 | .00 | 0.00 % |
| 2001 | .00 | 2.56 % |
| 2002 | .00 | 10.00 % |
| 2003 | .00 | 0.00 % |
| 2004 | .00 | 9.09 % |
| 2005 | .00 | 10.42 % |
| 2006 | .00 | 7.55 % |
| 2007 | .00 | 14.04 % |
| 2008 | .00 | 4.62 % |
| 2009 | .00 | -1.47 % |
| 2010 | .00 | 0.00 % |
|
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