|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 33.66 | NA |
| 1987 | 33.50 | -0.46 % |
| 1988 | 35.06 | 4.66 % |
| 1989 | 33.95 | -3.17 % |
| 1990 | 34.90 | 2.81 % |
| 1991 | 35.30 | 1.15 % |
| 1992 | 29.36 | -16.84 % |
| 1993 | 33.72 | 14.83 % |
| 1994 | 36.02 | 6.84 % |
| 1995 | 34.26 | -4.89 % |
| 1996 | 34.55 | 0.86 % |
| 1997 | 35.49 | 2.70 % |
| 1998 | 32.77 | -7.66 % |
| 1999 | 33.28 | 1.56 % |
| 2000 | 50.50 | 51.75 % |
| 2001 | 49.79 | -1.42 % |
| 2002 | 66.20 | 32.96 % |
| 2003 | 66.71 | 0.78 % |
| 2004 | 73.48 | 10.15 % |
| 2005 | 72.46 | -1.39 % |
| 2006 | 69.19 | -4.51 % |
| 2007 | 73.52 | 6.25 % |
| 2008 | 68.49 | -6.83 % |
| 2009 | 65.71 | -4.07 % |
| 2010 | 67.25 | 2.34 % |
|
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