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year | production | consumption |
1980 | .10 | .10 |
1981 | .10 | .10 |
1982 | .19 | .19 |
1983 | .18 | .18 |
1984 | .18 | .18 |
1985 | .21 | .21 |
1986 | .19 | .19 |
1987 | .17 | .17 |
1988 | .17 | .17 |
1989 | .16 | .16 |
1990 | .13 | .13 |
1991 | .13 | .13 |
1992 | .13 | .13 |
1993 | .10 | .10 |
1994 | .12 | .12 |
1995 | .14 | .14 |
1996 | .13 | .13 |
1997 | .15 | .15 |
1998 | .12 | .12 |
1999 | .13 | .13 |
2000 | .15 | .15 |
2001 | .16 | .16 |
2002 | .18 | .18 |
2003 | .20 | .20 |
2004 | .15 | .15 |
2005 | .15 | .15 |
2006 | .17 | .17 |
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