|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 1.14 | NA |
| 1987 | 1.29 | 13.64 % |
| 1988 | 1.23 | -4.60 % |
| 1989 | 1.12 | -9.16 % |
| 1990 | 1.12 | 0.00 % |
| 1991 | 1.21 | 8.31 % |
| 1992 | 1.40 | 15.68 % |
| 1993 | .34 | -75.49 % |
| 1994 | | NA |
| 1995 | 1.13 | NA |
| 1996 | 1.69 | 49.73 % |
| 1997 | .44 | -73.62 % |
| 1998 | .51 | 14.29 % |
| 1999 | .55 | 8.33 % |
| 2000 | .59 | 7.40 % |
| 2001 | .49 | -17.63 % |
| 2002 | .28 | -43.48 % |
| 2003 | .23 | -15.39 % |
| 2004 | .19 | -18.41 % |
| 2005 | .19 | 0.27 % |
| 2006 | .17 | -11.11 % |
| 2007 | .19 | 12.50 % |
| 2008 | .14 | -25.56 % |
| 2009 | .15 | 4.48 % |
| 2010 | .17 | 14.28 % |
|
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