|
| year | production | change |
| 1980 | 1,563.08 | NA |
| 1981 | 1,697.56 | 8.60 % |
| 1982 | 1,873.93 | 10.39 % |
| 1983 | 2,039.28 | 8.82 % |
| 1984 | 2,215.65 | 8.65 % |
| 1985 | 2,369.97 | 6.97 % |
| 1986 | 2,388.71 | 0.79 % |
| 1987 | 2,352.33 | -1.52 % |
| 1988 | 2,407.45 | 2.34 % |
| 1989 | 2,417.37 | 0.41 % |
| 1990 | 2,281.78 | -5.61 % |
| 1991 | 1,198.21 | -47.49 % |
| 1992 | 403.45 | -66.33 % |
| 1993 | 235.89 | -41.53 % |
| 1994 | 186.46 | -20.96 % |
| 1995 | 88.18 | -52.70 % |
| 1996 | 124.56 | 41.25 % |
| 1997 | 42.99 | -65.49 % |
| 1998 | 54.01 | 25.64 % |
| 1999 | 54.01 | 0.00 % |
| 2000 | 33.07 | -38.78 % |
| 2001 | 23.15 | -30.00 % |
| 2002 | 84.88 | 266.67 % |
| 2003 | 89.29 | 5.19 % |
| 2004 | 89.29 | 0.00 % |
| 2005 | 70.55 | -20.99 % |
| 2006 | 70.55 | 0.00 % |
| 2007 | 70.55 | 0.00 % |
| 2008 | 93.70 | 32.81 % |
| 2009 | 15.43 | -83.53 % |
| 2010 | 15.43 | 0.00 % |
| 2011 | 24.25 | 57.14 % |
|
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