|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.93 | NA |
| 1987 | 6.11 | 23.94 % |
| 1988 | 4.95 | -18.91 % |
| 1989 | 4.72 | -4.67 % |
| 1990 | 4.91 | 3.99 % |
| 1991 | 5.47 | 11.38 % |
| 1992 | 5.73 | 4.83 % |
| 1993 | 5.77 | 0.69 % |
| 1994 | 5.82 | 0.79 % |
| 1995 | 5.84 | 0.43 % |
| 1996 | 6.68 | 14.29 % |
| 1997 | 1.69 | -74.68 % |
| 1998 | 1.45 | -14.42 % |
| 1999 | 1.14 | -21.00 % |
| 2000 | 1.52 | 32.55 % |
| 2001 | 1.50 | -1.16 % |
| 2002 | 1.25 | -16.54 % |
| 2003 | 1.24 | -0.75 % |
| 2004 | 1.32 | 6.37 % |
| 2005 | 1.49 | 12.62 % |
| 2006 | 1.38 | -6.80 % |
| 2007 | .89 | -35.44 % |
| 2008 | .77 | -14.29 % |
| 2009 | .99 | 29.54 % |
| 2010 | .91 | -8.48 % |
|
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