|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .70 | NA |
| 1987 | .54 | -23.33 % |
| 1988 | .79 | 47.42 % |
| 1989 | .82 | 3.22 % |
| 1990 | .82 | 0.00 % |
| 1991 | .84 | 2.86 % |
| 1992 | .61 | -27.98 % |
| 1993 | .65 | 7.99 % |
| 1994 | .80 | 22.72 % |
| 1995 | .65 | -18.51 % |
| 1996 | .65 | -0.27 % |
| 1997 | .65 | 0.27 % |
| 1998 | .68 | 3.57 % |
| 1999 | .68 | 0.00 % |
| 2000 | .68 | -0.27 % |
| 2001 | | NA |
| 2002 | .70 | NA |
| 2003 | .72 | 3.33 % |
| 2004 | .75 | 2.94 % |
| 2005 | .77 | 3.41 % |
| 2006 | .77 | 0.00 % |
| 2007 | .77 | 0.00 % |
| 2008 | .77 | 0.00 % |
| 2009 | | NA |
| 2010 | | NA |
|
|