Year	cubic meters
1992	8544.108725437849
1993	8387.4324378275
1994	8366.68976081506
1995	8349.930300305365
1996	8332.379763413317
1997	8318.767187376718
1998	8305.930854925055
1999	8294.200933824213
2000	8284.259534038702
2001	8273.302065263551
2002	8258.166671518853
2003	8236.673732347774
2004	8212.074565766627
2005	8186.898689545861
2006	8101.573979236821
2007	8075.702241461421
2008	8042.640914764719
2009	8010.425990329744
2010	7979.033201840695
2011	7959.408856580948
2012	7928.876771884903
2013	7893.0747741589175
2014	7856.445943598208
2015	7820.141735474806
2016	7784.958576746086
2017	7754.577361394457
2018	7725.568827178411
2019	7700.030626446395
2020	7681.885807478543