|
| year | production | consumption |
| 1984 | | |
| 1985 | | |
| 1986 | | .30 |
| 1987 | 11.00 | .70 |
| 1988 | | .70 |
| 1989 | 6.50 | .72 |
| 1990 | 6.75 | .75 |
| 1991 | 6.75 | .70 |
| 1992 | 1.69 | .74 |
| 1993 | 1.65 | .78 |
| 1994 | 1.91 | 1.69 |
| 1995 | 3.18 | 1.69 |
| 1996 | 3.04 | 1.80 |
| 1997 | 2.03 | .61 |
| 1998 | 3.13 | |
| 1999 | 3.18 | 3.18 |
| 2000 | | |
| 2001 | 64.30 | |
| 2002 | | |
| 2003 | | |
| 2004 | | |
| 2005 | | |
| 2006 | | |
| 2007 | | |
| 2008 | | |
| 2009 | | |
| 2010 | | |
|
|