Year	per 100 people
1980	2.355263727
1981	2.421972407
1982	2.471992707
1983	2.450732115
1984	2.522726597
1985	2.48598807
1986	2.449776395
1987	2.465655293
1988	2.429368766
1989	2.445367692
1990	2.574422289
1991	2.81659172
1992	2.8133921
1993	3.071632817
1994	3.156118716
1995	3.148401219
1996	4.363236787
1997	4.725337384
1998	5.458971045
1999	5.955266065
2000	5.944087602
2001	5.995723343
2002	6.635947331
2003	6.737722551
2004	6.786122686
2005	6.892015133
2006	6.984979663
2007	6.98370286
2008	7.985067293
2009	8.001109904
2010	8.326132441
2011	8.450002049
2012	8.329198084
2013	8.138812208
2014	8.025208052
2015	7.946151184
2016	7.70083253
2017	7.442678234
2018	6.133943545
2019	5.538376577
2020	5.01067261
2021	4.553270209