|
| year | production | consumption |
| 1980 | | |
| 1981 | | |
| 1982 | | |
| 1983 | | |
| 1984 | | |
| 1985 | | |
| 1986 | | |
| 1987 | | |
| 1988 | | |
| 1989 | | |
| 1990 | | |
| 1991 | | |
| 1992 | 128,401.60 | 132,331.40 |
| 1993 | 109,731.80 | 114,773.80 |
| 1994 | 88,349.16 | 92,090.40 |
| 1995 | 79,677.27 | 94,668.70 |
| 1996 | 62,790.96 | 74,109.49 |
| 1997 | 64,567.89 | 71,511.34 |
| 1998 | 65,618.39 | 72,537.60 |
| 1999 | 69,248.30 | 71,912.59 |
| 2000 | 68,787.54 | 72,349.10 |
| 2001 | 67,994.98 | 70,000.08 |
| 2002 | 67,853.88 | 70,665.88 |
| 2003 | 70,803.66 | 77,432.96 |
| 2004 | 65,685.63 | 69,248.30 |
| 2005 | 66,536.62 | 70,633.91 |
| 2006 | 67,980.64 | 76,103.58 |
| 2007 | 64,953.70 | 76,964.48 |
| 2008 | 65,728.63 | 78,009.47 |
| 2009 | 61,222.37 | 64,502.85 |
| 2010 | 61,053.72 | 70,866.49 |
| 2011 | 68,129.45 | 73,401.81 |
|
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