|
| year | production | change |
| 1980 | 2,708.89 | NA |
| 1981 | 2,786.53 | 2.87 % |
| 1982 | 2,770.53 | -0.57 % |
| 1983 | 3,050.68 | 10.11 % |
| 1984 | 3,101.52 | 1.67 % |
| 1985 | 3,002.71 | -3.19 % |
| 1986 | 3,044.53 | 1.39 % |
| 1987 | 2,645.54 | -13.10 % |
| 1988 | 2,826.41 | 6.84 % |
| 1989 | 3,090.90 | 9.36 % |
| 1990 | 2,848.65 | -7.84 % |
| 1991 | 2,958.77 | 3.87 % |
| 1992 | 3,289.31 | 11.17 % |
| 1993 | 3,407.00 | 3.58 % |
| 1994 | 3,343.53 | -1.86 % |
| 1995 | 3,797.51 | 13.58 % |
| 1996 | 3,868.38 | 1.87 % |
| 1997 | 4,038.91 | 4.41 % |
| 1998 | 3,641.91 | -9.83 % |
| 1999 | 3,864.41 | 6.11 % |
| 2000 | 3,952.49 | 2.28 % |
| 2001 | 4,311.58 | 9.09 % |
| 2002 | 4,915.14 | 14.00 % |
| 2003 | 5,709.88 | 16.17 % |
| 2004 | 5,682.85 | -0.47 % |
| 2005 | 5,806.05 | 2.17 % |
| 2006 | 6,358.03 | 9.51 % |
| 2007 | 5,330.13 | -16.17 % |
| 2008 | 5,411.71 | 1.53 % |
| 2009 | 5,030.21 | -7.05 % |
| 2010 | 5,875.87 | 16.81 % |
| 2011 | 5,453.13 | -7.19 % |
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