|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .46 | NA |
| 1987 | .49 | 6.95 % |
| 1988 | .49 | -0.25 % |
| 1989 | .52 | 7.41 % |
| 1990 | .49 | -5.93 % |
| 1991 | .56 | 12.66 % |
| 1992 | .56 | -0.03 % |
| 1993 | .59 | 6.58 % |
| 1994 | .66 | 10.78 % |
| 1995 | .66 | 0.07 % |
| 1996 | .69 | 4.58 % |
| 1997 | .69 | 0.28 % |
| 1998 | .69 | 0.01 % |
| 1999 | .69 | 0.00 % |
| 2000 | .72 | 4.37 % |
| 2001 | .72 | 0.28 % |
| 2002 | .78 | 8.86 % |
| 2003 | .85 | 8.25 % |
| 2004 | .88 | 3.52 % |
| 2005 | .95 | 7.65 % |
| 2006 | .88 | -6.84 % |
| 2007 | .89 | 0.89 % |
| 2008 | .93 | 4.07 % |
| 2009 | .65 | -30.10 % |
| 2010 | .65 | 0.00 % |
|
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