Year	cubic meters
1962	158647.6483553042
1963	154356.5778560013
1964	149943.00986518885
1965	145557.90839199527
1966	141215.22829486776
1967	136970.31711410903
1968	132897.8880905726
1969	129163.31626391299
1970	126214.79674124312
1971	123973.32055146193
1972	122027.28421321989
1973	120275.8620689655
1974	118644.06779661016
1975	116665.77472649292
1976	114331.95225929227
1977	112055.10232554724
1978	109837.1157320435
1979	107598.90849862152
1980	105144.9360241985
1981	102578.58083945041
1982	100125.32068316176
1983	97787.2902155037
1984	95541.60066616163
1985	93369.88178859004
1986	91272.85559629406
1987	89250.20470230436
1988	87291.28174033418
1989	85396.90534150368
1990	83575.68090082097
1991	81839.73141980672
1992	80189.59637202507
1993	78588.09230753385
1994	76909.12023223934
1995	74967.08522470474
1996	72722.07396111323
1997	70284.6852158053
1998	67850.26699924858
1999	65568.69889530062
2000	63475.95317920517
2001	61507.456670697306
2002	59612.402192298825
2003	57803.46820809248
2004	56076.55221072436
2005	54427.10655372269
2006	52852.32865420516
2007	51350.56011145023
2008	49922.956381207245
2009	48572.27433467761
2010	47375.70861766003
2011	46307.25439858226
2012	45273.97280594792
2013	44271.92127373161
2014	43311.05340088268
2015	42404.08368554287
2016	41544.94940282538
2017	40726.67490452183
2018	39940.74322237519
2019	39219.213816677155
2020	38640.63952030912