|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .32 | NA |
| 1987 | .34 | 6.66 % |
| 1988 | .19 | -43.15 % |
| 1989 | .16 | -16.79 % |
| 1990 | .20 | 25.89 % |
| 1991 | .14 | -32.07 % |
| 1992 | .08 | -38.37 % |
| 1993 | .11 | 29.49 % |
| 1994 | .13 | 16.15 % |
| 1995 | .16 | 24.71 % |
| 1996 | .15 | -5.34 % |
| 1997 | .18 | 20.53 % |
| 1998 | .02 | -88.29 % |
| 1999 | | NA |
| 2000 | | NA |
| 2001 | .16 | NA |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | .02 | NA |
| 2005 | .04 | 111.27 % |
| 2006 | .06 | 49.98 % |
| 2007 | .02 | -66.66 % |
| 2008 | .04 | 100.00 % |
| 2009 | .04 | 0.00 % |
| 2010 | .04 | 0.00 % |
|
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