|
| year | production | change |
| 1984 | 44.49 | NA |
| 1985 | 49.78 | 11.91 % |
| 1986 | 46.22 | -7.16 % |
| 1987 | 49.03 | 6.08 % |
| 1988 | 49.28 | 0.52 % |
| 1989 | 50.61 | 2.68 % |
| 1990 | 49.87 | -1.45 % |
| 1991 | 52.81 | 5.89 % |
| 1992 | 52.70 | -0.20 % |
| 1993 | 58.44 | 10.88 % |
| 1994 | 64.07 | 9.64 % |
| 1995 | 63.10 | -1.52 % |
| 1996 | 75.57 | 19.77 % |
| 1997 | 72.00 | -4.72 % |
| 1998 | 74.96 | 4.11 % |
| 1999 | 77.76 | 3.74 % |
| 2000 | 67.65 | -13.01 % |
| 2001 | 66.62 | -1.52 % |
| 2002 | 75.67 | 13.58 % |
| 2003 | 76.00 | 0.44 % |
| 2004 | 77.78 | 2.35 % |
| 2005 | 71.76 | -7.75 % |
| 2006 | 72.82 | 1.48 % |
| 2007 | 64.07 | -12.02 % |
| 2008 | 66.57 | 3.90 % |
| 2009 | 61.10 | -8.22 % |
| 2010 | 57.86 | -5.30 % |
|
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