|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 2.80 | NA |
| 1987 | | NA |
| 1988 | 3.10 | NA |
| 1989 | 2.33 | -24.85 % |
| 1990 | 2.75 | 18.05 % |
| 1991 | 2.12 | -22.99 % |
| 1992 | 2.32 | 9.70 % |
| 1993 | 2.73 | 17.59 % |
| 1994 | 4.24 | 55.04 % |
| 1995 | 5.29 | 25.00 % |
| 1996 | 6.34 | 19.67 % |
| 1997 | 10.00 | 57.83 % |
| 1998 | 6.71 | -32.87 % |
| 1999 | .17 | -97.48 % |
| 2000 | .19 | 12.19 % |
| 2001 | .19 | 0.27 % |
| 2002 | .19 | 0.00 % |
| 2003 | .25 | 33.34 % |
| 2004 | .40 | 57.90 % |
| 2005 | .23 | -41.95 % |
| 2006 | .21 | -9.09 % |
| 2007 | .13 | -40.00 % |
| 2008 | .04 | -66.66 % |
| 2009 | .02 | -50.00 % |
| 2010 | | NA |
|
|