|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 12.17 | NA |
| 1987 | 12.10 | -0.62 % |
| 1988 | 11.81 | -2.40 % |
| 1989 | 12.13 | 2.68 % |
| 1990 | 12.89 | 6.32 % |
| 1991 | 12.44 | -3.54 % |
| 1992 | 12.99 | 4.46 % |
| 1993 | 12.78 | -1.63 % |
| 1994 | 12.06 | -5.65 % |
| 1995 | 10.12 | -16.09 % |
| 1996 | 9.77 | -3.42 % |
| 1997 | 9.54 | -2.43 % |
| 1998 | 9.70 | 1.78 % |
| 1999 | 9.75 | 0.42 % |
| 2000 | 11.75 | 20.54 % |
| 2001 | 10.22 | -13.02 % |
| 2002 | 10.15 | -0.66 % |
| 2003 | 10.00 | -1.47 % |
| 2004 | 11.73 | 17.33 % |
| 2005 | 10.45 | -10.92 % |
| 2006 | 11.31 | 8.17 % |
| 2007 | 9.74 | -13.82 % |
| 2008 | 9.40 | -3.56 % |
| 2009 | 9.50 | 1.06 % |
| 2010 | 8.62 | -9.23 % |
|
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