|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.91 | NA |
| 1987 | 6.05 | 23.18 % |
| 1988 | 5.80 | -4.10 % |
| 1989 | 6.32 | 8.91 % |
| 1990 | 7.17 | 13.44 % |
| 1991 | 7.89 | 10.12 % |
| 1992 | 7.19 | -8.88 % |
| 1993 | .14 | -98.02 % |
| 1994 | .83 | 481.88 % |
| 1995 | .81 | -2.40 % |
| 1996 | .50 | -38.32 % |
| 1997 | .49 | -1.94 % |
| 1998 | .53 | 8.36 % |
| 1999 | .55 | 4.28 % |
| 2000 | .48 | -13.54 % |
| 2001 | .47 | -1.47 % |
| 2002 | .47 | -0.21 % |
| 2003 | .53 | 12.27 % |
| 2004 | .58 | 10.45 % |
| 2005 | .59 | 1.18 % |
| 2006 | .63 | 6.67 % |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | 6.72 | NA |
| 2010 | 7.71 | 14.66 % |
|
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