|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 40.00 | NA |
| 1987 | 40.90 | 2.24 % |
| 1988 | 39.62 | -3.12 % |
| 1989 | 50.83 | 28.29 % |
| 1990 | 33.19 | -34.71 % |
| 1991 | 16.36 | -50.70 % |
| 1992 | 22.78 | 39.24 % |
| 1993 | 28.41 | 24.72 % |
| 1994 | 28.96 | 1.92 % |
| 1995 | 34.52 | 19.21 % |
| 1996 | 45.05 | 30.52 % |
| 1997 | 25.99 | -42.32 % |
| 1998 | 21.62 | -16.82 % |
| 1999 | 24.89 | 15.14 % |
| 2000 | 23.70 | -4.77 % |
| 2001 | 27.81 | 17.33 % |
| 2002 | 31.08 | 11.77 % |
| 2003 | 22.60 | -27.29 % |
| 2004 | 32.65 | 44.49 % |
| 2005 | 32.27 | -1.16 % |
| 2006 | 36.46 | 12.96 % |
| 2007 | 34.26 | -6.03 % |
| 2008 | 36.71 | 7.16 % |
| 2009 | 34.05 | -7.26 % |
| 2010 | 34.56 | 1.51 % |
|
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