|
| year | production | change |
| 1984 | 53.40 | NA |
| 1985 | 48.11 | -9.91 % |
| 1986 | 42.78 | -11.09 % |
| 1987 | 45.83 | 7.13 % |
| 1988 | 50.55 | 10.30 % |
| 1989 | 50.38 | -0.34 % |
| 1990 | 55.99 | 11.14 % |
| 1991 | 61.88 | 10.53 % |
| 1992 | 58.63 | -5.26 % |
| 1993 | 58.50 | -0.22 % |
| 1994 | 59.19 | 1.18 % |
| 1995 | 67.10 | 13.36 % |
| 1996 | 63.44 | -5.46 % |
| 1997 | 62.85 | -0.94 % |
| 1998 | 64.53 | 2.67 % |
| 1999 | 65.25 | 1.13 % |
| 2000 | 66.56 | 2.00 % |
| 2001 | 60.10 | -9.70 % |
| 2002 | 70.62 | 17.51 % |
| 2003 | 73.52 | 4.09 % |
| 2004 | 69.47 | -5.50 % |
| 2005 | 78.41 | 12.87 % |
| 2006 | 75.70 | -3.46 % |
| 2007 | 73.03 | -3.53 % |
| 2008 | 70.58 | -3.35 % |
| 2009 | 66.90 | -5.22 % |
| 2010 | 71.45 | 6.80 % |
|
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