|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 1.70 | NA |
| 1987 | 1.48 | -12.80 % |
| 1988 | 1.58 | 6.85 % |
| 1989 | 1.48 | -6.41 % |
| 1990 | | NA |
| 1991 | .21 | NA |
| 1992 | .74 | 249.04 % |
| 1993 | 1.06 | 43.25 % |
| 1994 | .61 | -42.72 % |
| 1995 | .61 | 1.25 % |
| 1996 | 1.46 | 137.28 % |
| 1997 | 1.21 | -17.16 % |
| 1998 | 1.21 | 0.00 % |
| 1999 | 1.63 | 35.09 % |
| 2000 | 1.22 | -24.88 % |
| 2001 | .15 | -87.90 % |
| 2002 | .17 | 14.28 % |
| 2003 | .11 | -37.50 % |
| 2004 | .15 | 39.62 % |
| 2005 | .19 | 28.92 % |
| 2006 | .21 | 11.11 % |
| 2007 | .21 | 0.00 % |
| 2008 | .21 | 0.00 % |
| 2009 | .21 | 0.00 % |
| 2010 | | NA |
|
|