|
| year | production | change |
| 1980 | 19.84 | NA |
| 1981 | 30.86 | 55.56 % |
| 1982 | 14.33 | -53.57 % |
| 1983 | 14.33 | 0.00 % |
| 1984 | 14.33 | 0.00 % |
| 1985 | 13.23 | -7.69 % |
| 1986 | 13.23 | 0.00 % |
| 1987 | 27.56 | 108.33 % |
| 1988 | 33.07 | 20.00 % |
| 1989 | 22.05 | -33.33 % |
| 1990 | 12.13 | -45.00 % |
| 1991 | 30.86 | 154.55 % |
| 1992 | 40.79 | 32.14 % |
| 1993 | 4.41 | -89.19 % |
| 1994 | .53 | -87.91 % |
| 1995 | | NA |
| 1996 | | NA |
| 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 |
| 2011 | | NA |
|
|
