|
Loading...
| year | production | consumption |
| 1992 | 1.10 | 20.00 |
| 1993 | .60 | 15.00 |
| 1994 | .40 | 12.00 |
| 1995 | .50 | 13.00 |
| 1996 | .40 | 15.00 |
| 1997 | .50 | 17.00 |
| 1998 | .40 | 19.00 |
| 1999 | .40 | 21.00 |
| 2000 | .40 | 23.00 |
| 2001 | .30 | 25.00 |
| 2002 | .30 | 25.00 |
| 2003 | .40 | 27.00 |
| 2004 | .30 | 29.00 |
| 2005 | .30 | 32.00 |
| 2006 | .30 | 34.00 |
| 2007 | .30 | 40.00 |
| 2008 | .20 | 11.00 |
| 2009 | .20 | 10.00 |
| 2010 | .20 | 11.00 |
| 2011 | .20 | 12.00 |
| 2012 | .20 | 12.00 |
| 2013 | .20 | 12.00 |
|
|