Year	cubic meters
1993	1413.1286719265333
1994	1370.8690330477355
1995	1297.9668276763612
1996	1236.709240382267
1997	1221.8745213415657
1998	1205.4660999253902
1999	1188.2144404549672
2000	1170.1380762930025
2001	1137.320481070316
2002	1099.149572273795
2003	1055.2538450811978
2004	1013.3398959155163
2005	988.7941372983036
2006	972.1908285600499
2007	956.8828584004746
2008	931.5388789395361
2009	907.9447762045833
2010	889.530762991835
2011	872.9349632276146
2012	860.8508403748882
2013	849.419982665765
2014	842.5043441630246
2015	838.3218473260227
2016	832.0241334542937
2017	824.2729544562698
2018	812.6839060142672
2019	800.2702627001461
2020	787.4308045180529