Year	kg per hectare
1961	736.96036320615
1962	855.5024755964193
1963	859.6459486551903
1964	781.7875806425353
1965	887.6652037383104
1966	754.3679543862373
1967	767.8071603517955
1968	732.85637647017
1969	761.8765029957908
1970	638.7632669634213
1971	825.4941618612149
1972	825.9957041432313
1973	634.6529196738386
1974	946.6137825741629
1975	834.8154935191081
1976	846.336317604867
1977	923.5145718271237
1978	989.0888649850428
1979	897.6761395112227
1980	860.1166039538487
1981	866.0406445151358
1982	839.4270887191326
1983	813.4021272717453
1984	963.9893487074136
1985	1009.8089369592643
1986	927.0017991902401
1987	905.7936473353531
1988	926.4753216833377
1989	889.0556803171452
1990	962.991807617418
1991	909.8819256209555
1992	1121.9338018465514
1993	1388.8065149798201
1994	1004.3172289026145
1995	1134.371630676584
1996	1163.5179411570293
1997	1127.1093945872983
1998	1147.1372410626784
1999	1002.0996494563946
2000	1123.1823787001258
2001	1220.1138156220677
2002	1056.6825937683996
2003	1124.4209654850429
2004	1198.8816812901598
2005	1335.2031460082396
2006	1211.499627993259
2007	1343.707587960852
2008	1294.3277150587262
2009	1310.8545342285665
2010	1340.8665535736209
2011	1333.1006151001386
2012	1437.647131414079
2013	1568.4527335325533
2014	1330.5344518165548
2015	1847.628165548171
2016	1372.4779718491427
2017	1622.2020804862295
2018	1297.8957793473728
2019	2140.064759673519
2020	1882.3510697595764
2021	1646.6501462750712
2022	1910.3933394885685