|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .80 | NA |
| 1987 | .84 | 5.12 % |
| 1988 | .86 | 2.16 % |
| 1989 | 2.82 | 229.02 % |
| 1990 | 2.90 | 2.90 % |
| 1991 | 2.96 | 2.02 % |
| 1992 | 3.10 | 4.63 % |
| 1993 | 3.17 | 2.27 % |
| 1994 | 3.19 | 0.65 % |
| 1995 | 3.23 | 1.28 % |
| 1996 | 3.22 | -0.27 % |
| 1997 | 3.27 | 1.54 % |
| 1998 | 3.27 | 0.00 % |
| 1999 | 3.27 | 0.00 % |
| 2000 | 3.31 | 0.97 % |
| 2001 | 3.31 | 0.27 % |
| 2002 | 3.33 | 0.62 % |
| 2003 | 3.60 | 7.97 % |
| 2004 | 3.63 | 0.86 % |
| 2005 | 3.72 | 2.53 % |
| 2006 | 3.66 | -1.65 % |
| 2007 | 3.68 | 0.46 % |
| 2008 | 3.80 | 3.23 % |
| 2009 | 3.91 | 2.92 % |
| 2010 | 3.91 | 0.00 % |
|
|