|
| year | production | change |
| 1984 | 55.15 | NA |
| 1985 | 56.38 | 2.24 % |
| 1986 | 61.12 | 8.40 % |
| 1987 | 62.24 | 1.83 % |
| 1988 | 61.21 | -1.64 % |
| 1989 | 63.91 | 4.41 % |
| 1990 | 54.74 | -14.35 % |
| 1991 | 50.27 | -8.17 % |
| 1992 | 71.21 | 41.67 % |
| 1993 | 72.76 | 2.17 % |
| 1994 | 74.34 | 2.17 % |
| 1995 | 69.29 | -6.79 % |
| 1996 | 72.33 | 4.38 % |
| 1997 | 73.92 | 2.20 % |
| 1998 | 93.72 | 26.77 % |
| 1999 | 96.70 | 3.19 % |
| 2000 | 101.75 | 5.22 % |
| 2001 | 99.25 | -2.46 % |
| 2002 | 93.02 | -6.27 % |
| 2003 | 93.42 | 0.43 % |
| 2004 | 93.76 | 0.37 % |
| 2005 | 95.96 | 2.35 % |
| 2006 | 98.05 | 2.18 % |
| 2007 | 91.67 | -6.50 % |
| 2008 | 89.95 | -1.88 % |
| 2009 | 99.34 | 10.44 % |
| 2010 | 98.02 | -1.33 % |
|
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