|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .42 | NA |
| 1987 | .47 | 10.00 % |
| 1988 | .51 | 8.79 % |
| 1989 | .47 | -8.08 % |
| 1990 | .42 | -9.09 % |
| 1991 | .19 | -55.63 % |
| 1992 | .25 | 34.85 % |
| 1993 | .31 | 21.18 % |
| 1994 | .28 | -10.36 % |
| 1995 | .44 | 61.54 % |
| 1996 | .37 | -17.93 % |
| 1997 | .23 | -38.36 % |
| 1998 | .38 | 69.42 % |
| 1999 | .28 | -27.78 % |
| 2000 | .23 | -15.62 % |
| 2001 | .19 | -17.96 % |
| 2002 | .19 | 0.00 % |
| 2003 | .70 | 266.67 % |
| 2004 | .23 | -66.76 % |
| 2005 | .21 | -8.84 % |
| 2006 | | NA |
| 2007 | .19 | NA |
| 2008 | .15 | -22.22 % |
| 2009 | .13 | -14.29 % |
| 2010 | .13 | 0.00 % |
|
|