|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 9.11 | NA |
| 1987 | 9.00 | -1.16 % |
| 1988 | 9.04 | 0.43 % |
| 1989 | 9.11 | 0.74 % |
| 1990 | 9.38 | 3.00 % |
| 1991 | 9.00 | -4.04 % |
| 1992 | 10.64 | 18.26 % |
| 1993 | 14.66 | 37.68 % |
| 1994 | 15.35 | 4.77 % |
| 1995 | 19.76 | 28.71 % |
| 1996 | 19.21 | -2.77 % |
| 1997 | 16.94 | -11.85 % |
| 1998 | 20.31 | 19.89 % |
| 1999 | 21.50 | 5.86 % |
| 2000 | 31.53 | 46.69 % |
| 2001 | 30.43 | -3.49 % |
| 2002 | 13.02 | -57.20 % |
| 2003 | 13.24 | 1.63 % |
| 2004 | 13.61 | 2.85 % |
| 2005 | 15.31 | 12.48 % |
| 2006 | 13.22 | -13.69 % |
| 2007 | 12.92 | -2.24 % |
| 2008 | 13.15 | 1.80 % |
| 2009 | 9.83 | -25.28 % |
| 2010 | 8.13 | -17.24 % |
|
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