|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | .10 | NA |
| 1988 | .00 | -98.96 % |
| 1989 | .00 | 0.96 % |
| 1990 | .00 | 322.86 % |
| 1991 | | NA |
| 1992 | | NA |
| 1993 | | NA |
| 1994 | | NA |
| 1995 | | NA |
| 1996 | | NA |
| 1997 | | NA |
| 1998 | | NA |
| 1999 | | NA |
| 2000 | .03 | NA |
| 2001 | .03 | 0.28 % |
| 2002 | .03 | 0.00 % |
| 2003 | .03 | 0.00 % |
| 2004 | .03 | -0.28 % |
| 2005 | | NA |
| 2006 | .03 | NA |
| 2007 | .03 | 0.00 % |
| 2008 | .03 | 0.00 % |
| 2009 | .03 | 0.00 % |
| 2010 | .03 | 0.00 % |
|
|
