|
| year | production | change |
| 1980 | 279.94 | NA |
| 1981 | 257.55 | -8.00 % |
| 1982 | 250.24 | -2.84 % |
| 1983 | 246.89 | -1.34 % |
| 1984 | 236.65 | -4.15 % |
| 1985 | 202.32 | -14.51 % |
| 1986 | 159.06 | -21.38 % |
| 1987 | 133.99 | -15.76 % |
| 1988 | 112.58 | -15.97 % |
| 1989 | 108.13 | -3.95 % |
| 1990 | 101.00 | -6.60 % |
| 1991 | 114.00 | 12.87 % |
| 1992 | 111.38 | -2.30 % |
| 1993 | 120.88 | 8.53 % |
| 1994 | 124.77 | 3.22 % |
| 1995 | 118.41 | -5.10 % |
| 1996 | 102.80 | -13.18 % |
| 1997 | 91.32 | -11.16 % |
| 1998 | 79.88 | -12.53 % |
| 1999 | 73.00 | -8.62 % |
| 2000 | 66.32 | -9.14 % |
| 2001 | 67.45 | 1.70 % |
| 2002 | 65.33 | -3.14 % |
| 2003 | 56.86 | -12.97 % |
| 2004 | 49.44 | -13.04 % |
| 2005 | 40.61 | -17.86 % |
| 2006 | 43.44 | 6.96 % |
| 2007 | 38.14 | -12.20 % |
| 2008 | 32.49 | -14.81 % |
| 2009 | 31.08 | -4.35 % |
| 2010 | 26.49 | -14.77 % |
| 2011 | 21.90 | -17.33 % |
|
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