|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 21.38 | NA |
| 1987 | 23.77 | 11.16 % |
| 1988 | 26.57 | 11.80 % |
| 1989 | 33.93 | 27.67 % |
| 1990 | 33.90 | -0.09 % |
| 1991 | 34.15 | 0.74 % |
| 1992 | 36.57 | 7.08 % |
| 1993 | 39.74 | 8.68 % |
| 1994 | 43.70 | 9.97 % |
| 1995 | 40.78 | -6.68 % |
| 1996 | 43.47 | 6.61 % |
| 1997 | 45.90 | 5.58 % |
| 1998 | 47.67 | 3.87 % |
| 1999 | 49.75 | 4.36 % |
| 2000 | 51.40 | 3.31 % |
| 2001 | 48.08 | -6.45 % |
| 2002 | 49.31 | 2.55 % |
| 2003 | 52.93 | 7.35 % |
| 2004 | 55.54 | 4.92 % |
| 2005 | 58.90 | 6.05 % |
| 2006 | 58.00 | -1.52 % |
| 2007 | 54.90 | -5.36 % |
| 2008 | 52.11 | -5.07 % |
| 2009 | 57.14 | 9.64 % |
| 2010 | 47.39 | -17.06 % |
|
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