|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 10.81 | NA |
| 1987 | 11.88 | 9.94 % |
| 1988 | 11.24 | -5.41 % |
| 1989 | 11.49 | 2.20 % |
| 1990 | 11.61 | 1.04 % |
| 1991 | 11.09 | -4.48 % |
| 1992 | 11.84 | 6.77 % |
| 1993 | 10.83 | -8.49 % |
| 1994 | 11.02 | 1.78 % |
| 1995 | 9.74 | -11.69 % |
| 1996 | 8.61 | -11.54 % |
| 1997 | 8.43 | -2.15 % |
| 1998 | 8.78 | 4.13 % |
| 1999 | 8.82 | 0.46 % |
| 2000 | 10.42 | 18.24 % |
| 2001 | 8.92 | -14.44 % |
| 2002 | 8.28 | -7.11 % |
| 2003 | 8.41 | 1.48 % |
| 2004 | 7.89 | -6.09 % |
| 2005 | 7.65 | -3.09 % |
| 2006 | 7.53 | -1.60 % |
| 2007 | 8.11 | 7.79 % |
| 2008 | 7.64 | -5.79 % |
| 2009 | 7.98 | 4.36 % |
| 2010 | 8.04 | 0.77 % |
|
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