Year	Cubic Meters
1990	1867210
1991	1901820
1992	1980000
1993	2014720
1994	2080160
1995	2145810
1996	2162640
1997	2183370
1998	2184910
1999	2193710
2000	2202650
2001	2209700
2002	2216870
2003	2224160
2004	2231560
2005	2239070
2006	2247050
2007	2255100
2008	2263400
2009	2271690
2010	2280140
2011	2289470