|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 10.64 | NA |
| 1987 | 11.83 | 11.20 % |
| 1988 | 12.52 | 5.83 % |
| 1989 | 13.66 | 9.13 % |
| 1990 | 14.73 | 7.81 % |
| 1991 | 14.27 | -3.15 % |
| 1992 | 12.66 | -11.27 % |
| 1993 | 13.36 | 5.51 % |
| 1994 | 17.35 | 29.94 % |
| 1995 | 27.49 | 58.44 % |
| 1996 | 16.46 | -40.15 % |
| 1997 | 22.02 | 33.80 % |
| 1998 | 18.26 | -17.08 % |
| 1999 | 21.93 | 20.13 % |
| 2000 | 22.85 | 4.19 % |
| 2001 | 25.39 | 11.13 % |
| 2002 | 22.61 | -10.98 % |
| 2003 | 24.56 | 8.64 % |
| 2004 | 19.93 | -18.86 % |
| 2005 | 20.47 | 2.69 % |
| 2006 | 20.97 | 2.46 % |
| 2007 | 21.42 | 2.15 % |
| 2008 | 21.42 | 0.00 % |
| 2009 | 20.54 | -4.13 % |
| 2010 | 18.22 | -11.28 % |
|
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