|
| year | production | change |
| 1984 | 61.25 | NA |
| 1985 | 37.74 | -38.38 % |
| 1986 | 43.10 | 14.20 % |
| 1987 | 41.95 | -2.67 % |
| 1988 | 47.93 | 14.26 % |
| 1989 | 48.07 | 0.27 % |
| 1990 | 53.39 | 11.08 % |
| 1991 | 51.09 | -4.31 % |
| 1992 | 43.74 | -14.39 % |
| 1993 | 43.86 | 0.27 % |
| 1994 | 70.93 | 61.73 % |
| 1995 | 65.98 | -6.97 % |
| 1996 | 63.51 | -3.75 % |
| 1997 | 37.74 | -40.57 % |
| 1998 | 28.21 | -25.26 % |
| 1999 | 30.51 | 8.16 % |
| 2000 | 23.21 | -23.92 % |
| 2001 | 27.85 | 19.96 % |
| 2002 | 27.85 | 0.00 % |
| 2003 | 33.57 | 20.54 % |
| 2004 | 33.48 | -0.27 % |
| 2005 | 33.57 | 0.27 % |
| 2006 | 28.19 | -16.01 % |
| 2007 | 26.53 | -5.89 % |
| 2008 | 25.77 | -2.90 % |
| 2009 | 27.01 | 4.85 % |
| 2010 | 25.42 | -5.88 % |
|
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