Year	Cubic Meters
1990	16989
1991	15491
1992	16059
1993	13684
1994	14652
1995	14774
1996	14903
1997	14947
1998	22705
1999	22864
2000	23026
2001	23154
2002	23284
2003	25806
2004	25941
2005	26077
2006	26185
2007	26295
2008	26406
2009	26518
2010	26518
2011	26762