|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .11 | NA |
| 1987 | .08 | -26.53 % |
| 1988 | .08 | -0.91 % |
| 1989 | .07 | -8.21 % |
| 1990 | .07 | -3.90 % |
| 1991 | .08 | 24.57 % |
| 1992 | .08 | -0.27 % |
| 1993 | .06 | -24.80 % |
| 1994 | .08 | 33.34 % |
| 1995 | .06 | -32.09 % |
| 1996 | .05 | -9.61 % |
| 1997 | | NA |
| 1998 | | NA |
| 1999 | | NA |
| 2000 | | NA |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | | NA |
| 2005 | | NA |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
|
|
