Year	per 100 people
1985	1.44074919
1986	1.412429379
1987	1.384881708
1988	1.356852103
1989	1.330819563
1990	1.306904814
1991	1.282873637
1992	1.331079653
1993	1.576126931
1994	5.157443247
1995	5.258215962
1996	5.24399126
1997	5.275181724
1998	6.227942703
1999	6.53526971
2000	6.847893754
2001	6.756054464
2002	6.868560724
2003	7.240380637
2004	7.660096007
2005	8.979015335
2006	10.9670987
2007	12.80914376
2008	9.735202492
2009	7.686395081
2010	11.37440758
2011	13.55140187
2012	13.35913027
2013	13.28082066
2014	13.76273053
2015	18.387423
2016	18.42978253
2017	18.4706317
2019	18.25483753
2020	18.06847954
2021	17.85076758