|
Loading...
| year | production | consumption |
| 1986 | 3.30 | 3.30 |
| 1987 | 1.50 | 1.90 |
| 1988 | 3.30 | 2.30 |
| 1989 | 5.60 | 5.60 |
| 1990 | 5.60 | 5.60 |
| 1991 | 6.40 | .70 |
| 1992 | 6.00 | 3.50 |
| 1993 | 8.10 | 8.10 |
| 1994 | 10.00 | .90 |
| 1995 | 8.00 | 1.80 |
| 1996 | 8.60 | 2.80 |
| 1997 | 9.80 | 3.20 |
| 1998 | 8.90 | 3.00 |
| 1999 | 6.90 | 6.90 |
| 2000 | 2.90 | .50 |
| 2001 | 2.70 | .50 |
| 2002 | 4.10 | .40 |
| 2003 | 5.90 | .40 |
| 2004 | 4.60 | 1.10 |
| 2005 | 7.40 | 2.70 |
| 2007 | .00 | .00 |
| 2008 | .00 | .00 |
| 2009 | .00 | .20 |
| 2010 | .00 | .10 |
| 2011 | .00 | .10 |
|
|
