|
| year | production | change |
| 1980 | 1,142.26 | NA |
| 1981 | 1,279.94 | 12.05 % |
| 1982 | 1,327.00 | 3.68 % |
| 1983 | 1,356.30 | 2.21 % |
| 1984 | 1,507.00 | 11.11 % |
| 1985 | 1,534.00 | 1.79 % |
| 1986 | 1,622.00 | 5.74 % |
| 1987 | 1,595.20 | -1.65 % |
| 1988 | 1,712.74 | 7.37 % |
| 1989 | 1,964.29 | 14.69 % |
| 1990 | 1,830.91 | -6.79 % |
| 1991 | 1,948.76 | 6.44 % |
| 1992 | 1,940.88 | -0.40 % |
| 1993 | 2,080.32 | 7.18 % |
| 1994 | 2,188.81 | 5.21 % |
| 1995 | 2,310.94 | 5.58 % |
| 1996 | 2,456.16 | 6.28 % |
| 1997 | 2,565.64 | 4.46 % |
| 1998 | 2,776.47 | 8.22 % |
| 1999 | 2,715.02 | -2.21 % |
| 2000 | 2,914.90 | 7.36 % |
| 2001 | 3,106.66 | 6.58 % |
| 2002 | 3,045.92 | -1.96 % |
| 2003 | 3,181.53 | 4.45 % |
| 2004 | 3,534.68 | 11.10 % |
| 2005 | 3,593.09 | 1.65 % |
| 2006 | 3,757.87 | 4.59 % |
| 2007 | 3,596.90 | -4.28 % |
| 2008 | 3,769.31 | 4.79 % |
| 2009 | 3,491.70 | -7.37 % |
| 2010 | 3,978.69 | 13.95 % |
| 2011 | 4,176.42 | 4.97 % |
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