|
| year | production | change |
| 1980 | 1,231.28 | NA |
| 1981 | 1,144.20 | -7.07 % |
| 1982 | 1,036.17 | -9.44 % |
| 1983 | 1,092.39 | 5.43 % |
| 1984 | 1,320.57 | 20.89 % |
| 1985 | 1,556.46 | 17.86 % |
| 1986 | 1,649.06 | 5.95 % |
| 1987 | 1,727.32 | 4.75 % |
| 1988 | 2,123.05 | 22.91 % |
| 1989 | 2,148.41 | 1.19 % |
| 1990 | 2,406.35 | 12.01 % |
| 1991 | 2,433.90 | 1.15 % |
| 1992 | 1,792.36 | -26.36 % |
| 1993 | 1,493.63 | -16.67 % |
| 1994 | 1,302.93 | -12.77 % |
| 1995 | 1,144.20 | -12.18 % |
| 1996 | 1,106.72 | -3.28 % |
| 1997 | 1,150.81 | 3.98 % |
| 1998 | 1,037.28 | -9.87 % |
| 1999 | 534.62 | -48.46 % |
| 2000 | 403.09 | -24.60 % |
| 2001 | 634.69 | 57.45 % |
| 2002 | 477.30 | -24.80 % |
| 2003 | 634.93 | 33.03 % |
| 2004 | 256.84 | -59.55 % |
| 2005 | 599.66 | 133.48 % |
| 2006 | 742.96 | 23.90 % |
| 2007 | 267.86 | -63.95 % |
| 2008 | 735.24 | 174.49 % |
| 2009 | 701.07 | -4.65 % |
| 2010 | 682.33 | -2.67 % |
| 2011 | 720.91 | 5.65 % |
|
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