Year	cubic meters
1992	8290.440684864761
1993	8506.633969780367
1994	8690.51509934264
1995	8847.068912471792
1996	8978.563062573026
1997	9081.587813095064
1998	9169.242134362945
1999	9142.280060190873
2000	9098.164976717719
2001	9156.301891413896
2002	9214.48508355385
2003	9272.499124547685
2004	9328.098051447654
2005	9381.631636249562
2006	9437.114366540196
2007	9480.263746755378
2008	9505.717640547757
2009	9524.059302443211
2010	9545.804464973056
2011	9574.827920529682
2012	9609.161893587037
2013	9643.421039653353
2014	9668.744698736065
2015	9662.408668951892
2016	9659.596136161546
2017	9647.90827883138
2018	9614.388147448859
2019	9578.731748785514
2020	9559.826764807203