|
| year | production | change |
| 1980 | 3,397.80 | NA |
| 1981 | 3,154.16 | -7.17 % |
| 1982 | 2,685.14 | -14.87 % |
| 1983 | 2,852.92 | 6.25 % |
| 1984 | 2,879.59 | 0.93 % |
| 1985 | 3,008.94 | 4.49 % |
| 1986 | 2,759.76 | -8.28 % |
| 1987 | 2,767.60 | 0.28 % |
| 1988 | 2,445.67 | -11.63 % |
| 1989 | 2,673.20 | 9.30 % |
| 1990 | 2,693.00 | 0.74 % |
| 1991 | 3,044.00 | 13.03 % |
| 1992 | 3,057.36 | 0.44 % |
| 1993 | 3,112.03 | 1.79 % |
| 1994 | 2,952.19 | -5.14 % |
| 1995 | 2,980.80 | 0.97 % |
| 1996 | 3,369.72 | 13.05 % |
| 1997 | 2,987.47 | -11.34 % |
| 1998 | 2,840.60 | -4.92 % |
| 1999 | 2,648.70 | -6.76 % |
| 2000 | 2,559.17 | -3.38 % |
| 2001 | 2,746.98 | 7.34 % |
| 2002 | 2,676.03 | -2.58 % |
| 2003 | 2,574.32 | -3.80 % |
| 2004 | 3,035.25 | 17.90 % |
| 2005 | 2,772.58 | -8.65 % |
| 2006 | 2,729.67 | -1.55 % |
| 2007 | 2,686.94 | -1.57 % |
| 2008 | 2,957.31 | 10.06 % |
| 2009 | 2,785.51 | -5.81 % |
| 2010 | 3,130.75 | 12.39 % |
| 2011 | 2,851.05 | -8.93 % |
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