|
| year | production | consumption |
| 1984 | | |
| 1985 | | |
| 1986 | 242.36 | 162.97 |
| 1987 | 253.60 | 168.07 |
| 1988 | 264.25 | 173.31 |
| 1989 | 256.00 | 161.80 |
| 1990 | 243.82 | 164.71 |
| 1991 | 226.50 | 172.50 |
| 1992 | 335.09 | 178.36 |
| 1993 | 365.00 | 179.95 |
| 1994 | 374.60 | 178.34 |
| 1995 | 375.55 | 187.90 |
| 1996 | 394.64 | 186.45 |
| 1997 | 409.43 | 181.70 |
| 1998 | 434.26 | 157.68 |
| 1999 | 402.14 | 181.18 |
| 2000 | 383.90 | 210.00 |
| 2001 | 355.65 | 229.31 |
| 2002 | 347.00 | 206.47 |
| 2003 | 273.64 | 208.39 |
| 2004 | 361.45 | 183.49 |
| 2005 | 394.46 | 222.50 |
| 2006 | 368.03 | 249.68 |
| 2007 | 345.62 | 269.29 |
| 2008 | 351.37 | 273.78 |
| 2009 | 384.67 | 260.76 |
| 2010 | 298.90 | 279.90 |
|
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