Year	% of total
1960	2.4258760107816713
1961	3.1746031746031744
1962	1.7283950617283952
1963	3.056768558951965
1964	0
1965	0.7552870090634441
1966	0.13869625520110956
1967	0.11507479861910241
1968	0.11806375442739078
1969	0.0876424189307625
1970	0.0755287009063444
1971	0.07358351729212655
1972	0
1973	0.06756756756756757
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0