|
| year | production | consumption |
| 1984 | | |
| 1985 | | |
| 1986 | 22.56 | 6.56 |
| 1987 | 28.80 | 8.08 |
| 1988 | 32.20 | 8.08 |
| 1989 | 28.51 | 8.08 |
| 1990 | 28.88 | 8.08 |
| 1991 | 30.05 | 8.08 |
| 1992 | 33.65 | 12.08 |
| 1993 | 32.42 | 13.08 |
| 1994 | 32.85 | 13.08 |
| 1995 | 32.82 | 13.08 |
| 1996 | 40.00 | 18.08 |
| 1997 | 40.27 | 18.08 |
| 1998 | 41.00 | 18.08 |
| 1999 | 2.15 | 34.79 |
| 2000 | 3.08 | 1.08 |
| 2001 | 6.09 | .99 |
| 2002 | 1.67 | .94 |
| 2003 | 73.77 | 27.15 |
| 2004 | 75.83 | 37.60 |
| 2005 | 81.83 | 43.05 |
| 2006 | 26.37 | 26.37 |
| 2007 | 4.89 | 56.41 |
| 2008 | 4.96 | 58.00 |
| 2009 | 4.07 | 33.53 |
| 2010 | 12.11 | 10.33 |
|
|
