|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 29.23 | NA |
| 1987 | 30.13 | 3.07 % |
| 1988 | 30.27 | 0.47 % |
| 1989 | 32.09 | 6.01 % |
| 1990 | 34.61 | 7.85 % |
| 1991 | 40.04 | 15.69 % |
| 1992 | 38.77 | -3.15 % |
| 1993 | 34.39 | -11.32 % |
| 1994 | 36.30 | 5.56 % |
| 1995 | 34.00 | -6.33 % |
| 1996 | 36.56 | 7.53 % |
| 1997 | 41.06 | 12.31 % |
| 1998 | 38.43 | -6.40 % |
| 1999 | 38.54 | 0.28 % |
| 2000 | 57.05 | 48.02 % |
| 2001 | 60.01 | 5.19 % |
| 2002 | 58.49 | -2.53 % |
| 2003 | 58.63 | 0.24 % |
| 2004 | 60.02 | 2.37 % |
| 2005 | 64.43 | 7.34 % |
| 2006 | 61.42 | -4.67 % |
| 2007 | 60.65 | -1.24 % |
| 2008 | 56.44 | -6.95 % |
| 2009 | 48.20 | -14.60 % |
| 2010 | 47.59 | -1.27 % |
|
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