|
Loading...
| year | production | consumption |
| 1980 | .39 | .39 |
| 1981 | .37 | .37 |
| 1982 | .38 | .38 |
| 1983 | .45 | .45 |
| 1984 | .47 | .47 |
| 1985 | .51 | .51 |
| 1986 | .50 | .50 |
| 1987 | .31 | .31 |
| 1988 | .28 | .28 |
| 1989 | .22 | .22 |
| 1990 | .24 | .24 |
| 1991 | .42 | .42 |
| 1992 | .40 | .40 |
| 1993 | .35 | .35 |
| 1994 | .34 | .34 |
| 1995 | .34 | .34 |
| 1996 | .38 | .38 |
| 1997 | .57 | .57 |
| 1998 | .57 | .57 |
| 1999 | .48 | .48 |
| 2000 | .53 | .53 |
| 2001 | .74 | .74 |
| 2002 | .90 | .90 |
| 2003 | .82 | .82 |
| 2004 | 1.26 | 1.26 |
| 2005 | 1.94 | 1.94 |
| 2006 | 2.52 | 2.52 |
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