|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .29 | NA |
| 1987 | .32 | 10.78 % |
| 1988 | .00 | -99.33 % |
| 1989 | .19 | 8,784.26 % |
| 1990 | .20 | 3.14 % |
| 1991 | .20 | 0.15 % |
| 1992 | .32 | 63.17 % |
| 1993 | .33 | 0.51 % |
| 1994 | .32 | -0.09 % |
| 1995 | .20 | -37.10 % |
| 1996 | 1.89 | 825.58 % |
| 1997 | .27 | -85.50 % |
| 1998 | .40 | 46.91 % |
| 1999 | .40 | 0.00 % |
| 2000 | .30 | -25.24 % |
| 2001 | .30 | -1.47 % |
| 2002 | .30 | 0.00 % |
| 2003 | .30 | 0.00 % |
| 2004 | .38 | 27.79 % |
| 2005 | .44 | 17.34 % |
| 2006 | .41 | -7.50 % |
| 2007 | | NA |
| 2008 | .41 | NA |
| 2009 | .38 | -7.85 % |
| 2010 | .43 | 12.76 % |
|
|
