|
| year | production | change |
| 1980 | 11.00 | NA |
| 1981 | 12.00 | 9.09 % |
| 1982 | 15.90 | 32.50 % |
| 1983 | 18.70 | 17.61 % |
| 1984 | 23.00 | 22.99 % |
| 1985 | 28.00 | 21.74 % |
| 1986 | 38.00 | 35.71 % |
| 1987 | 40.20 | 5.79 % |
| 1988 | 36.73 | -8.63 % |
| 1989 | 38.49 | 4.79 % |
| 1990 | 38.00 | -1.27 % |
| 1991 | 36.41 | -4.19 % |
| 1992 | 35.85 | -1.53 % |
| 1993 | 38.85 | 8.36 % |
| 1994 | 50.50 | 30.00 % |
| 1995 | 57.92 | 14.69 % |
| 1996 | 56.50 | -2.44 % |
| 1997 | 53.33 | -5.63 % |
| 1998 | 62.15 | 16.56 % |
| 1999 | 60.74 | -2.27 % |
| 2000 | 120.42 | 98.26 % |
| 2001 | 247.21 | 105.28 % |
| 2002 | 296.65 | 20.00 % |
| 2003 | 339.02 | 14.29 % |
| 2004 | 360.21 | 6.25 % |
| 2005 | 459.10 | 27.45 % |
| 2006 | 444.97 | -3.08 % |
| 2007 | 477.46 | 7.30 % |
| 2008 | 437.91 | -8.28 % |
| 2009 | 407.54 | -6.94 % |
| 2010 | 425.55 | 4.42 % |
| 2011 | 420.60 | -1.16 % |
|
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