|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 14.02 | NA |
| 1987 | 20.93 | 49.27 % |
| 1988 | 22.70 | 8.46 % |
| 1989 | 25.00 | 10.13 % |
| 1990 | 30.00 | 20.00 % |
| 1991 | 42.07 | 40.22 % |
| 1992 | 42.18 | 0.28 % |
| 1993 | 42.53 | 0.83 % |
| 1994 | 43.47 | 2.20 % |
| 1995 | 43.70 | 0.54 % |
| 1996 | 44.16 | 1.06 % |
| 1997 | 46.04 | 4.24 % |
| 1998 | 46.04 | 0.00 % |
| 1999 | 46.53 | 1.07 % |
| 2000 | 47.31 | 1.68 % |
| 2001 | 48.12 | 1.71 % |
| 2002 | 47.21 | -1.89 % |
| 2003 | 46.09 | -2.38 % |
| 2004 | 46.40 | 0.69 % |
| 2005 | 47.21 | 1.73 % |
| 2006 | 28.91 | -38.76 % |
| 2007 | 30.26 | 4.69 % |
| 2008 | 30.03 | -0.77 % |
| 2009 | 32.06 | 6.77 % |
| 2010 | 30.03 | -6.34 % |
|
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