|
| year | production | change |
| 1984 | 1,880.09 | NA |
| 1985 | 1,942.47 | 3.32 % |
| 1986 | 2,807.41 | 44.53 % |
| 1987 | 3,369.62 | 20.03 % |
| 1988 | 3,690.24 | 9.51 % |
| 1989 | 3,867.57 | 4.81 % |
| 1990 | 4,002.37 | 3.49 % |
| 1991 | 3,859.46 | -3.57 % |
| 1992 | 3,767.52 | -2.38 % |
| 1993 | 3,739.89 | -0.73 % |
| 1994 | 3,971.21 | 6.19 % |
| 1995 | 4,145.93 | 4.40 % |
| 1996 | 4,367.70 | 5.35 % |
| 1997 | 4,363.05 | -0.11 % |
| 1998 | 4,435.69 | 1.66 % |
| 1999 | 4,491.11 | 1.25 % |
| 2000 | 4,778.75 | 6.40 % |
| 2001 | 4,658.60 | -2.51 % |
| 2002 | 4,585.39 | -1.57 % |
| 2003 | 4,651.11 | 1.43 % |
| 2004 | 4,978.05 | 7.03 % |
| 2005 | 5,131.94 | 3.09 % |
| 2006 | 5,189.39 | 1.12 % |
| 2007 | 5,182.63 | -0.13 % |
| 2008 | 5,349.50 | 3.22 % |
| 2009 | 5,060.43 | -5.40 % |
| 2010 | 5,144.14 | 1.65 % |
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