Year	Cubic Meters
1990	4962900
1991	5082900
1992	5232900
1993	5355500
1994	5455300
1995	5587500
1996	6145100
1997	6506300
1998	6856400
1999	6929300
2000	7002900
2001	7061000
2002	7119500
2003	7178400
2004	7237500
2005	7297000
2006	7335000
2007	7373000
2008	7410900
2009	7448900
2010	7486700
2011	7526762