Year	Cubic Meters
1990	10230020
1991	10407980
1992	11710820
1993	10332320
1994	10774690
1995	11584530
1996	11494700
1997	11514310
1998	12304750
1999	9856600
2000	10703790
2001	9543260
2002	11545390
2003	13018130
2004	15003910
2005	14337340
2006	14027120
2007	13658210
2008	13119300
2009	14089210
2010	15009550
2011	15187470