Year	Per 100,000 People
1952	4.7302
1963	4.1132
1965	3.7496
1968	3.5182
1974	6.7472
1976	9.8052
1977	3.3194
1979	2.9379
1981	3.5038
1986	2.6386
1990	2.9335
1991	5.5243
1992	3.1459
1996	2.8215
1999	2.0833
2000	2.0378
2002	3.9358
2004	1.878
2005	1.8143
2010	1.5846
2011	1.7209
2013	1.4351
2015	2.7364
2016	1.5394