Year	per 100 people
1975	0.526142991
1976	0.513971694
1977	0.516721
1978	0.568307285
1979	0.73516082
1980	0.766121668
1981	0.80775494
1982	0.82091379
1983	0.854684536
1984	1.01121091
1985	1.046176202
1986	1.11007076
1987	1.167910676
1988	1.391260234
1989	1.60142834
1990	1.742211028
1991	1.817087457
1992	1.959877069
1993	2.130733294
1994	2.320494101
1995	2.76662047
1996	3.183040383
1997	3.801900096
1998	3.954910623
1999	4.310348421
2000	4.487386816
2001	4.529222731
2002	4.594034566
2003	4.643232045
2004	5.245736182
2005	6.526176554
2006	9.23289263
2007	10.36341647
2008	10.19244297
2009	8.654208823
2010	7.96834006
2011	7.124160221
2012	6.943591748
2013	6.909035799
2014	5.777255664
2015	5.348019572
2016	4.681729808
2017	5.101434094
2018	5.432575808
2019	4.921291449
2020	5.253659861
2021	4.529143113
2022	3.9676177