Year Cubic Meters 1990 232700 1991 234280 1992 235420 1993 109410 1994 112840 1995 115430 1996 122820 1997 124350 1998 143050 1999 143590 2000 135990 2001 146640 2002 150000 2003 165490 2004 170330 2005 172260 2006 171340 2007 175550 2008 196500 2009 215250 2010 207670 2011 207670