Year	cubic meters
1961	135140.7199239575
1962	131748.58984689767
1963	129157.12141559365
1964	126479.4615920167
1965	124410.28762745396
1966	122201.87600433499
1967	120039.64612165486
1968	118991.30308212948
1969	117931.33294864398
1970	116341.12498665812
1971	114616.1934805468
1972	112607.18344295603
1973	110424.4757370074
1974	108145.64936997718
1975	106062.08037364991
1976	105127.79295933129
1977	104800.97429651945
1978	104767.39715494041
1979	105178.51399163717
1980	105046.74098107874
1981	104643.34858715479
1982	103608.88438262412
1983	102209.85840652643
1984	101329.36692386353
1985	100705.24467986819
1986	100730.06191664356
1987	99865.62423650135
1988	99591.8864591582
1989	99114.93695441319
1990	98204.09634212265
1991	93559.55480529885
1992	92589.97083557495
1993	91540.22731090085
1994	90331.49171270718
1995	89018.34812435346
1996	87620.57877813504
1997	86478.19532964853
1998	85714.28571428571
1999	85265.05175875466
2000	84765.53386733028
2001	84267.49130266719
2002	82816.25933898949
2003	81197.85458879618
2004	80000
2005	79102.05858874187
2006	78143.66964584429
2007	77418.43837302903
2008	76764.16733179962
2009	76000.55780225909
2010	75160.31902912176
2011	74589.41605839416
2012	74181.62019917878
2013	73613.83129600865
2014	72401.19561607439
2015	70941.98811125093
2016	69366.36897817187
2017	67932.52451387735
2018	66726.52328286333
2019	65673.2005141388
2020	64241.09072335076