Year	Cubic Meters
1990	3198190
1991	3298490
1992	3405510
1993	3539710
1994	3555960
1995	3557720
1996	3518930
1997	3517460
1998	3491670
1999	1593000
2000	1819000
2001	1696000
2002	2778000
2003	2636000
2004	2513000
2005	2579000
2006	2579000
2007	2174200
2008	1912100
2009	2361600
2010	1860400
2011	1860400