|
| year | production | change |
| 1984 | 41.86 | NA |
| 1985 | 36.56 | -12.65 % |
| 1986 | 34.39 | -5.93 % |
| 1987 | 29.34 | -14.70 % |
| 1988 | 34.01 | 15.93 % |
| 1989 | 35.17 | 3.40 % |
| 1990 | 30.48 | -13.31 % |
| 1991 | 31.62 | 3.71 % |
| 1992 | 34.00 | 7.53 % |
| 1993 | 37.91 | 11.50 % |
| 1994 | 31.47 | -16.97 % |
| 1995 | 29.41 | -6.57 % |
| 1996 | 26.35 | -10.40 % |
| 1997 | 24.74 | -6.09 % |
| 1998 | 22.96 | -7.22 % |
| 1999 | 24.02 | 4.63 % |
| 2000 | 24.05 | 0.15 % |
| 2001 | 23.13 | -3.83 % |
| 2002 | 7.40 | -68.00 % |
| 2003 | 6.48 | -12.40 % |
| 2004 | 5.58 | -13.88 % |
| 2005 | 3.85 | -30.98 % |
| 2006 | 4.22 | 9.60 % |
| 2007 | 3.53 | -16.34 % |
| 2008 | 3.58 | 1.20 % |
| 2009 | 2.92 | -18.42 % |
| 2010 | 1.96 | -32.77 % |
|
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