|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | .78 | NA |
| 1993 | .89 | 13.82 % |
| 1994 | .95 | 7.14 % |
| 1995 | 1.10 | 15.56 % |
| 1996 | 1.06 | -4.11 % |
| 1997 | 1.06 | 0.27 % |
| 1998 | 1.06 | 0.00 % |
| 1999 | 1.06 | 0.00 % |
| 2000 | 1.14 | 7.71 % |
| 2001 | 1.16 | 2.13 % |
| 2002 | 1.21 | 3.64 % |
| 2003 | 1.21 | 0.00 % |
| 2004 | 1.20 | -0.27 % |
| 2005 | 1.23 | 2.03 % |
| 2006 | 1.27 | 3.45 % |
| 2007 | 1.29 | 1.67 % |
| 2008 | 1.31 | 1.64 % |
| 2009 | .15 | -88.71 % |
| 2010 | .15 | 0.00 % |
|
|
