Year	per 100 people
1978	5.928304467
1979	6.302914405
1980	6.474238204
1981	6.830939368
1982	7.109972603
1983	7.148201096
1984	7.32160352
1985	7.65011504
1986	7.861911204
1987	8.388359725
1988	8.410010814
1989	8.381949815
1990	8.817502922
1991	9.168064191
1992	9.501006506
1993	10.02673058
1994	10.79577393
1995	11.19081378
1996	11.73630018
1997	12.93260377
1998	14.51405391
1999	15.71380032
2000	14.29625106
2001	12.47660913
2002	12.39683562
2003	11.98830906
2004	13.09806553
2005	14.23084648
2006	14.49598554
2007	14.43198448
2008	14.99163442
2009	15.06896076
2010	14.88338861
2011	15.18659551
2012	15.17712235
2013	15.09929463
2014	15.13058554
2015	15.67906582
2016	16.21364933
2017	16.17621604
2018	17.4870248
2019	15.33729692
2020	18.83650227
2021	20.13914568
2022	18.40701541