Year	Cubic Meters
1990	1517000
1991	1476100
1992	1482600
1993	1468900
1994	1459300
1995	1452700
1996	1418300
1997	1411900
1998	1306200
1999	1338200
2000	1326700
2001	1334800
2002	1337400
2003	1333500
2004	1312100
2005	1360200
2006	1348800
2007	1333900
2008	1322500
2009	1312585
2010	1304086
2011	1299826