Year	kg per hectare
1961	1697.2945945945946
1962	1701.04353293851
1963	1742.5792405256725
1964	1707.1972912368824
1965	1688.8538149528613
1966	1640.0351897119779
1967	1657.5833691287703
1968	1961.7648098042337
1969	1719.9691065917546
1970	1825.1550740119028
1971	1879.0068319173165
1972	1864.2502819548872
1973	1942.6990658001623
1974	1843.2346099424583
1975	2073.7647511162563
1976	2191.643553919518
1977	1993.6936123348016
1978	1938.0281729961032
1979	2185.1494526585157
1980	2263.730049557996
1981	2322.4168192703196
1982	2241.111085084395
1983	2072.758599055211
1984	2132.2194379703005
1985	2301.1738545338035
1986	2130.5171044243275
1987	1790.9741311357936
1988	2219.94865512995
1989	2209.80257619016
1990	2124.1086476725523
1991	2229.2245403351653
1992	2077.2742108120683
1993	2171.4860059760954
1994	2168.0933755433757
1995	2421.9113844870726
1996	2015.714578928823
1997	2048.553693918724
1998	827.9701823796198
1999	2482.6794223018364
2000	2349.13740558686
2001	2140.332674808429
2002	2162.8986523260337
2003	2106.0232421875
2004	2103.3699175500587
2005	2122.4474391805375
2006	2101.390009402915
2007	2298.1112524224804
2008	1971.2031941031942
2009	2231.383694104244
2010	2094.2977823268507
2011	2091.723267585966
2012	1791.7772905894517
2013	2092.928689111748
2014	2448.5966909469303
2015	2038.798233916021
2016	2157.412467907574
2017	2162.168983626815
2018	2087.24600170503
2019	2178.471615720524
2020	2418.242771585427
2021	2557.8115683732985
2022	2773.3958246656766