|
| year | production | change |
| 1980 | 653.68 | NA |
| 1981 | 662.86 | 1.40 % |
| 1982 | 673.81 | 1.65 % |
| 1983 | 768.81 | 14.10 % |
| 1984 | 1,036.50 | 34.82 % |
| 1985 | 1,140.68 | 10.05 % |
| 1986 | 1,186.94 | 4.06 % |
| 1987 | 1,268.16 | 6.84 % |
| 1988 | 1,385.05 | 9.22 % |
| 1989 | 1,457.10 | 5.20 % |
| 1990 | 1,602.00 | 9.94 % |
| 1991 | 1,814.13 | 13.24 % |
| 1992 | 1,913.72 | 5.49 % |
| 1993 | 1,972.70 | 3.08 % |
| 1994 | 2,206.47 | 11.85 % |
| 1995 | 2,237.56 | 1.41 % |
| 1996 | 2,382.70 | 6.49 % |
| 1997 | 2,371.40 | -0.47 % |
| 1998 | 2,268.99 | -4.32 % |
| 1999 | 2,505.95 | 10.44 % |
| 2000 | 2,236.85 | -10.74 % |
| 2001 | 1,887.94 | -15.60 % |
| 2002 | 2,063.10 | 9.28 % |
| 2003 | 2,189.53 | 6.13 % |
| 2004 | 2,028.49 | -7.35 % |
| 2005 | 2,000.60 | -1.38 % |
| 2006 | 2,199.07 | 9.92 % |
| 2007 | 2,422.26 | 10.15 % |
| 2008 | 2,472.05 | 2.06 % |
| 2009 | 2,556.81 | 3.43 % |
| 2010 | 2,841.45 | 11.13 % |
| 2011 | 2,692.77 | -5.23 % |
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