Year	per 100 people
1975	6.820647962
1976	7.648470306
1977	7.40848344
1978	7.594936709
1979	7.228587016
1980	8.423269281
1983	9.762502855
1984	9.077023784
1985	9.418398246
1992	24.58890426
1993	23.59894921
1994	22.91348424
1995	24.61426396
1996	25.63583449
1997	26.76192783
1998	13.98491879
1999	15.67504448
2000	18.1177977
2001	19.52191235
2002	17.62792504
2003	17.08831647
2004	16.25781626
2005	15.41987914
2006	14.72461
2007	14.08557941
2008	13.49281599
2009	12.9456632
2010	12.44701608
2012	11.53366584
2013	11.90688813
2014	11.71930827
2015	10.94750671
2019	9.285051068
2020	9.034239769
2021	8.866427273