|
| year | production | change |
| 1980 | 58.00 | NA |
| 1981 | 87.00 | 50.00 % |
| 1982 | 109.00 | 25.29 % |
| 1983 | 114.00 | 4.59 % |
| 1984 | 135.00 | 18.42 % |
| 1985 | 185.00 | 37.04 % |
| 1986 | 177.00 | -4.32 % |
| 1987 | 174.00 | -1.69 % |
| 1988 | 163.00 | -6.32 % |
| 1989 | 170.00 | 4.29 % |
| 1990 | 161.00 | -5.29 % |
| 1991 | 153.29 | -4.79 % |
| 1992 | 140.36 | -8.44 % |
| 1993 | 126.86 | -9.61 % |
| 1994 | 107.95 | -14.91 % |
| 1995 | 111.00 | 2.83 % |
| 1996 | 108.00 | -2.70 % |
| 1997 | 124.00 | 14.81 % |
| 1998 | 120.50 | -2.82 % |
| 1999 | 100.00 | -17.01 % |
| 2000 | 84.82 | -15.18 % |
| 2001 | 76.65 | -9.64 % |
| 2002 | 69.82 | -8.91 % |
| 2003 | 67.00 | -4.04 % |
| 2004 | 65.99 | -1.51 % |
| 2005 | 82.32 | 24.74 % |
| 2006 | 86.40 | 4.97 % |
| 2007 | 82.83 | -4.14 % |
| 2008 | 81.33 | -1.81 % |
| 2009 | 76.90 | -5.44 % |
| 2010 | 65.00 | -15.48 % |
| 2011 | 61.66 | -5.14 % |
| 2012 | 63.00 | 2.17 % |
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