|
| year | production | change |
| 1980 | 131.18 | NA |
| 1981 | 137.79 | 5.04 % |
| 1982 | 159.84 | 16.00 % |
| 1983 | 159.84 | 0.00 % |
| 1984 | 163.14 | 2.07 % |
| 1985 | 166.45 | 2.03 % |
| 1986 | 176.37 | 5.96 % |
| 1987 | 184.09 | 4.37 % |
| 1988 | 152.12 | -17.37 % |
| 1989 | 139.99 | -7.97 % |
| 1990 | 115.74 | -17.32 % |
| 1991 | 103.62 | -10.48 % |
| 1992 | 48.07 | -53.61 % |
| 1993 | 52.46 | 9.13 % |
| 1994 | 57.40 | 9.41 % |
| 1995 | 62.67 | 9.18 % |
| 1996 | 68.26 | 8.92 % |
| 1997 | 74.10 | 8.56 % |
| 1998 | 78.26 | 5.62 % |
| 1999 | 83.49 | 6.68 % |
| 2000 | 89.08 | 6.69 % |
| 2001 | 28.66 | -67.83 % |
| 2002 | 23.15 | -19.23 % |
| 2003 | 38.58 | 66.67 % |
| 2004 | 37.48 | -2.86 % |
| 2005 | 36.38 | -2.94 % |
| 2006 | 38.58 | 6.06 % |
| 2007 | 267.86 | 594.29 % |
| 2008 | 382.50 | 42.80 % |
| 2009 | 551.16 | 44.09 % |
| 2010 | 551.16 | 0.00 % |
| 2011 | 551.16 | 0.00 % |
|
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