|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 1.19 | NA |
| 1987 | .95 | -19.91 % |
| 1988 | 1.09 | 14.71 % |
| 1989 | 1.68 | 53.00 % |
| 1990 | 1.37 | -18.22 % |
| 1991 | .93 | -31.77 % |
| 1992 | .98 | 4.71 % |
| 1993 | 1.05 | 7.44 % |
| 1994 | 1.12 | 6.67 % |
| 1995 | 1.29 | 14.58 % |
| 1996 | 1.28 | -0.27 % |
| 1997 | 1.26 | -1.55 % |
| 1998 | 1.19 | -5.56 % |
| 1999 | .21 | -82.35 % |
| 2000 | .21 | -0.28 % |
| 2001 | .21 | 0.28 % |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | | NA |
| 2005 | | NA |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
|
|