|
| year | production | change |
| 1980 | 312.61 | NA |
| 1981 | 365.62 | 16.96 % |
| 1982 | 403.23 | 10.29 % |
| 1983 | 421.63 | 4.56 % |
| 1984 | 440.66 | 4.51 % |
| 1985 | 462.66 | 4.99 % |
| 1986 | 515.99 | 11.53 % |
| 1987 | 532.30 | 3.16 % |
| 1988 | 554.73 | 4.21 % |
| 1989 | 570.48 | 2.84 % |
| 1990 | 723.00 | 26.74 % |
| 1991 | 753.00 | 4.15 % |
| 1992 | 804.79 | 6.88 % |
| 1993 | 863.80 | 7.33 % |
| 1994 | 932.46 | 7.95 % |
| 1995 | 1,033.32 | 10.82 % |
| 1996 | 1,064.68 | 3.03 % |
| 1997 | 1,056.20 | -0.80 % |
| 1998 | 1,096.67 | 3.83 % |
| 1999 | 1,116.41 | 1.80 % |
| 2000 | 1,159.00 | 3.81 % |
| 2001 | 1,185.21 | 2.26 % |
| 2002 | 1,234.97 | 4.20 % |
| 2003 | 1,274.48 | 3.20 % |
| 2004 | 1,309.30 | 2.73 % |
| 2005 | 1,439.58 | 9.95 % |
| 2006 | 1,509.33 | 4.84 % |
| 2007 | 1,354.15 | -10.28 % |
| 2008 | 1,405.11 | 3.76 % |
| 2009 | 1,574.52 | 12.06 % |
| 2010 | 1,732.73 | 10.05 % |
| 2011 | 1,970.01 | 13.69 % |
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