|
| year | production | change |
| 1980 | 316.00 | NA |
| 1981 | 342.55 | 8.40 % |
| 1982 | 324.00 | -5.42 % |
| 1983 | 331.00 | 2.16 % |
| 1984 | 303.00 | -8.46 % |
| 1985 | 295.00 | -2.64 % |
| 1986 | 293.00 | -0.68 % |
| 1987 | 307.60 | 4.98 % |
| 1988 | 304.41 | -1.04 % |
| 1989 | 307.25 | 0.93 % |
| 1990 | 318.00 | 3.50 % |
| 1991 | 277.00 | -12.89 % |
| 1992 | 286.05 | 3.27 % |
| 1993 | 292.41 | 2.22 % |
| 1994 | 297.35 | 1.69 % |
| 1995 | 330.20 | 11.05 % |
| 1996 | 325.25 | -1.50 % |
| 1997 | 324.19 | -0.33 % |
| 1998 | 315.01 | -2.83 % |
| 1999 | 333.73 | 5.94 % |
| 2000 | 349.27 | 4.66 % |
| 2001 | 365.51 | 4.65 % |
| 2002 | 383.17 | 4.83 % |
| 2003 | 402.59 | 5.07 % |
| 2004 | 406.12 | 0.88 % |
| 2005 | 406.12 | 0.00 % |
| 2006 | 487.35 | 20.00 % |
| 2007 | 474.99 | -2.54 % |
| 2008 | 473.22 | -0.37 % |
| 2009 | 399.06 | -15.67 % |
| 2010 | 416.72 | 4.42 % |
| 2011 | 439.32 | 5.42 % |
|
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