Year	Per 100 People
1960	0.85875
1965	0.75307
1970	0.68746
1976	0.5602
1977	0.55374
1978	0.55821
1979	0.99675
1981	1.8084
1983	2.9859
1984	2.73545
1985	2.76734
1986	2.86792
1987	2.9666
1988	3.59154
1989	4.19682
1990	4.60521
1991	5.32869
1992	5.74579
1993	6.18335
1994	6.74507
1995	6.87997
1996	8.07314
1997	7.54717
1998	8.75071
1999	9.32463
2000	9.88968
2001	10.95213
2002	11.29315
2003	12.02537
2004	12.94743
2005	13.60438
2006	18.14061
2007	20.54964
2008	24.79103
2009	29.92162
2010	29.76848
2011	28.687
2012	28.58477
2013	29.43187
2014	11.34409
2015	12.42902
2016	10.26867