Year	cubic meters
1962	116615.11746146632
1963	114071.14222977095
1964	111628.96612692003
1965	109290.75094254449
1966	107044.47324138554
1967	104897.11829204272
1968	102843.38100161978
1969	100859.55515671789
1970	98937.75160914988
1971	97068.99630896602
1972	95327.81699388276
1973	93707.68203667893
1974	92177.77567377928
1975	90607.84263493565
1976	88906.98159882751
1977	87155.10487697361
1978	85442.05707056737
1979	83762.6571880197
1980	82139.63479309437
1981	80639.2419458676
1982	79200.30385160688
1983	77800.1101552726
1984	76418.93638836575
1985	74974.55964921246
1986	73522.64352188131
1987	72123.54835801972
1988	70707.79114479989
1989	69295.57225744611
1990	67860.49292315108
1991	66432.78562976836
1992	58657.35114713682
1993	58233.21211651169
1994	56576.316036177
1995	56022.140671713925
1996	55296.14608590858
1997	54520.19847106381
1998	53751.787407735486
1999	52939.417962053
2000	52162.546307293145
2001	51465.264301213654
2002	50790.511210708726
2003	50119.418569716174
2004	49199.45389857728
2005	48455.296904295865
2006	47718.75094860683
2007	46984.35960198406
2008	46275.76940893966
2009	45609.65768341003
2010	45069.03086194502
2011	44646.57487526208
2012	44182.86856638213
2013	43652.54389565562
2014	43084.620035557535
2015	42511.713498269884
2016	41969.9189147001
2017	41428.251295791706
2018	40887.14819814296
2019	40440.80938682017
2020	40120.953260882205