Year	cubic meters
1992	10836.249280240952
1993	10833.130382801603
1994	10836.969280857567
1995	10729.321989299186
1996	10571.68784029038
1997	10418.618516310366
1998	10260.012581253932
1999	10108.668705065696
2000	9988.975992160706
2001	9894.643182139896
2002	9804.235878734446
2003	9701.980845874725
2004	9585.284149901072
2005	9477.782512687405
2006	9376.437222137054
2007	9287.449700098701
2008	9199.61644762818
2009	9089.220366689578
2010	8981.442390645938
2011	8872.810357958873
2012	8726.280496504494
2013	8554.794041541367
2014	8384.885613914832
2015	8214.003928217697
2016	8048.359240069085
2017	7894.2273563292565
2018	7738.660087303093
2019	7578.761500573092
2020	7436.283226188848