|
| year | production | change |
| 1980 | 899.79 | NA |
| 1981 | 969.11 | 7.70 % |
| 1982 | 1,045.47 | 7.88 % |
| 1983 | 1,027.07 | -1.76 % |
| 1984 | 1,008.77 | -1.78 % |
| 1985 | 998.74 | -0.99 % |
| 1986 | 885.66 | -11.32 % |
| 1987 | 898.17 | 1.41 % |
| 1988 | 904.95 | 0.75 % |
| 1989 | 865.54 | -4.36 % |
| 1990 | 903.00 | 4.33 % |
| 1991 | 899.00 | -0.44 % |
| 1992 | 878.64 | -2.27 % |
| 1993 | 950.04 | 8.13 % |
| 1994 | 974.87 | 2.61 % |
| 1995 | 956.82 | -1.85 % |
| 1996 | 1,064.04 | 11.21 % |
| 1997 | 1,166.03 | 9.59 % |
| 1998 | 1,266.11 | 8.58 % |
| 1999 | 1,286.95 | 1.65 % |
| 2000 | 1,314.46 | 2.14 % |
| 2001 | 1,301.99 | -0.95 % |
| 2002 | 1,333.57 | 2.42 % |
| 2003 | 1,400.10 | 4.99 % |
| 2004 | 1,252.09 | -10.57 % |
| 2005 | 1,348.54 | 7.70 % |
| 2006 | 1,740.57 | 29.07 % |
| 2007 | 1,678.45 | -3.57 % |
| 2008 | 1,694.10 | 0.93 % |
| 2009 | 1,721.78 | 1.63 % |
| 2010 | 1,798.66 | 4.47 % |
| 2011 | 1,760.77 | -2.11 % |
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