|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 6.37 | NA |
| 1987 | 8.96 | 40.66 % |
| 1988 | 7.00 | -21.84 % |
| 1989 | 6.97 | -0.52 % |
| 1990 | 8.12 | 16.57 % |
| 1991 | 8.70 | 7.10 % |
| 1992 | 7.43 | -14.61 % |
| 1993 | 2.00 | -73.12 % |
| 1994 | | NA |
| 1995 | 8.35 | NA |
| 1996 | 12.33 | 47.67 % |
| 1997 | 8.89 | -27.92 % |
| 1998 | 12.11 | 36.22 % |
| 1999 | 8.86 | -26.85 % |
| 2000 | 12.63 | 42.65 % |
| 2001 | 11.63 | -7.91 % |
| 2002 | 8.63 | -25.82 % |
| 2003 | 12.11 | 40.27 % |
| 2004 | 15.74 | 30.05 % |
| 2005 | 14.97 | -4.92 % |
| 2006 | 15.54 | 3.82 % |
| 2007 | 12.43 | -20.04 % |
| 2008 | 16.90 | 36.00 % |
| 2009 | 13.11 | -22.43 % |
| 2010 | 14.72 | 12.32 % |
|
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