Year	Cubic Meters
1990	1073300
1991	922000
1992	954200
1993	1380200
1994	1518800
1995	1397000
1996	1402000
1997	1119000
1998	1829000
1999	1528000
2000	1511000
2001	1321000
2002	1434000
2003	1136000
2004	1621000
2005	1742000
2006	1804000
2007	1971200
2008	1782000
2009	1347000
2010	1352000
2011	1496000