Year Cubic Meters 1990 580000 1991 474000 1992 778000 1993 685000 1994 766000 1995 872000 1996 1001000 1997 818000 1998 772000 1999 790000 2000 704000 2001 692000 2002 718000 2003 882000 2004 1211000 2005 1286000 2006 1241000 2007 1600400 2008 1678700 2009 1202080 2010 1586450 2011 2096430