|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 24.73 | NA |
| 1987 | 22.44 | -9.26 % |
| 1988 | 23.59 | 5.13 % |
| 1989 | 23.98 | 1.66 % |
| 1990 | 22.08 | -7.89 % |
| 1991 | 19.76 | -10.53 % |
| 1992 | 16.31 | -17.44 % |
| 1993 | 16.13 | -1.16 % |
| 1994 | 16.36 | 1.45 % |
| 1995 | 18.15 | 10.93 % |
| 1996 | 20.74 | 14.29 % |
| 1997 | 9.03 | -56.48 % |
| 1998 | 7.24 | -19.74 % |
| 1999 | 7.03 | -2.90 % |
| 2000 | 14.08 | 100.20 % |
| 2001 | 11.67 | -17.12 % |
| 2002 | 7.45 | -36.17 % |
| 2003 | 9.63 | 29.23 % |
| 2004 | 7.74 | -19.59 % |
| 2005 | 9.52 | 22.97 % |
| 2006 | 7.29 | -23.43 % |
| 2007 | 11.56 | 58.61 % |
| 2008 | 16.74 | 44.75 % |
| 2009 | 11.50 | -31.30 % |
| 2010 | 13.27 | 15.45 % |
|
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