|
| year | production | change |
| 1984 | 34.61 | NA |
| 1985 | 42.55 | 22.93 % |
| 1986 | 35.85 | -15.74 % |
| 1987 | 32.88 | -8.29 % |
| 1988 | 31.83 | -3.20 % |
| 1989 | 28.19 | -11.43 % |
| 1990 | 30.54 | 8.32 % |
| 1991 | 32.04 | 4.93 % |
| 1992 | 32.13 | 0.26 % |
| 1993 | 29.76 | -7.36 % |
| 1994 | 25.98 | -12.71 % |
| 1995 | 24.89 | -4.20 % |
| 1996 | 25.05 | 0.64 % |
| 1997 | 27.18 | 8.52 % |
| 1998 | 23.81 | -12.42 % |
| 1999 | 23.12 | -2.89 % |
| 2000 | 17.24 | -25.44 % |
| 2001 | 22.88 | 32.76 % |
| 2002 | 18.93 | -17.29 % |
| 2003 | 20.66 | 9.15 % |
| 2004 | 20.62 | -0.19 % |
| 2005 | 21.70 | 5.24 % |
| 2006 | 18.36 | -15.40 % |
| 2007 | 17.09 | -6.91 % |
| 2008 | 14.20 | -16.88 % |
| 2009 | 16.03 | 12.83 % |
| 2010 | 17.94 | 11.95 % |
|
|
