|
Loading...
| year | production | consumption |
| 1986 | .00 | .70 |
| 1987 | .00 | .70 |
| 1988 | .90 | .90 |
| 1989 | .80 | 1.50 |
| 1990 | .70 | .80 |
| 1991 | .70 | .80 |
| 1992 | 5.20 | 6.10 |
| 1993 | 5.30 | 6.10 |
| 1994 | 5.40 | 6.20 |
| 1995 | 5.40 | 6.20 |
| 1996 | 5.40 | 6.20 |
| 1997 | 5.50 | 6.30 |
| 1998 | 5.50 | 6.30 |
| 1999 | 5.50 | 6.30 |
| 2000 | 5.50 | 6.40 |
| 2001 | .00 | 6.40 |
| 2002 | .00 | 6.40 |
| 2003 | .00 | 6.40 |
| 2004 | .00 | 6.50 |
| 2005 | .00 | 6.60 |
| 2006 | .00 | 5.00 |
| 2007 | .00 | 4.70 |
| 2008 | .00 | .50 |
| 2009 | .00 | .50 |
| 2010 | .00 | .50 |
| 2011 | .00 | .50 |
| 2012 | .00 | .50 |
|
|