|
| year | production | change |
| 1984 | 42.29 | NA |
| 1985 | 45.05 | 6.52 % |
| 1986 | 50.87 | 12.92 % |
| 1987 | 51.79 | 1.81 % |
| 1988 | 49.63 | -4.16 % |
| 1989 | 52.10 | 4.96 % |
| 1990 | 56.63 | 8.70 % |
| 1991 | 65.55 | 15.74 % |
| 1992 | 66.16 | 0.94 % |
| 1993 | 73.30 | 10.79 % |
| 1994 | 74.48 | 1.61 % |
| 1995 | 70.21 | -5.73 % |
| 1996 | 73.44 | 4.60 % |
| 1997 | 80.05 | 9.01 % |
| 1998 | 79.54 | -0.64 % |
| 1999 | 75.13 | -5.54 % |
| 2000 | 75.76 | 0.84 % |
| 2001 | 81.22 | 7.21 % |
| 2002 | 83.75 | 3.11 % |
| 2003 | 80.14 | -4.31 % |
| 2004 | 75.11 | -6.28 % |
| 2005 | 80.92 | 7.73 % |
| 2006 | 78.36 | -3.15 % |
| 2007 | 76.35 | -2.58 % |
| 2008 | 87.40 | 14.48 % |
| 2009 | 84.72 | -3.07 % |
| 2010 | 77.67 | -8.32 % |
|
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