Year	per 100 people
1970	0.695362789
1971	0.706416
1972	0.706416
1973	0.706416
1974	0.706416
1975	0.768059477
1976	0.861523199
1977	0.935307436
1978	0.970067865
1979	0.912077269
1980	0.933215754
1981	0.971198396
1982	1.029409154
1983	1.103272044
1984	1.13901211
1985	1.152368009
1986	1.145322048
1987	1.165075294
1988	1.127689522
1989	1.118043437
1990	1.095789319
1991	1.116287561
1992	1.226064856
1993	1.475913516
1994	1.843226111
1995	2.046007045
1996	2.314794805
1997	2.508536627
1998	2.839109934
1999	2.975477823
2000	3.210557731
2001	3.037938947
2002	3.26358251
2003	3.851242011
2004	3.982011142
2005	4.049166605
2006	4.482286197
2007	4.440518717
2008	4.473443249
2009	4.413480797
2010	4.411487954
2011	4.839973661
2012	4.960081133
2013	5.310522522
2014	5.470232301
2015	5.62056826
2016	5.738339566
2017	5.79977076
2018	4.957539539
2019	3.433142395
2020	3.317458309
2021	3.0300823
2022	3.104732721