|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 11.73 | NA |
| 1987 | 13.43 | 14.52 % |
| 1988 | 10.40 | -22.53 % |
| 1989 | 15.95 | 53.35 % |
| 1990 | 19.09 | 19.66 % |
| 1991 | 18.42 | -3.53 % |
| 1992 | 20.01 | 8.64 % |
| 1993 | 16.16 | -19.22 % |
| 1994 | 18.77 | 16.11 % |
| 1995 | 19.21 | 2.34 % |
| 1996 | 18.76 | -2.31 % |
| 1997 | 17.12 | -8.73 % |
| 1998 | 18.70 | 9.22 % |
| 1999 | 19.27 | 3.02 % |
| 2000 | 17.85 | -7.35 % |
| 2001 | 13.10 | -26.61 % |
| 2002 | 15.14 | 15.60 % |
| 2003 | 10.01 | -33.94 % |
| 2004 | 13.49 | 34.86 % |
| 2005 | 14.23 | 5.48 % |
| 2006 | 16.45 | 15.54 % |
| 2007 | 7.48 | -54.51 % |
| 2008 | 3.89 | -48.05 % |
| 2009 | 6.15 | 58.34 % |
| 2010 | 5.20 | -15.50 % |
|
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