Year Cubic Meters 1990 1755000 1991 1664000 1992 1666000 1993 1546000 1994 1611000 1995 1675000 1996 1632000 1997 1580000 1998 1487000 1999 1492000 2000 3193000 2001 1559000 2002 1397000 2003 1572000 2004 1623000 2005 2576000 2006 2043000 2007 2217000 2008 2062000 2009 2091000 2010 2309000 2011 2231000