Year	per 1,000
1990	16.742776898969826
1991	16.002784337906515
1992	15.644304968323295
1993	15.247390122249618
1994	14.893794152040332
1995	14.61337940457889
1996	14.283641248607498
1997	13.950878077914917
1998	13.697458408010824
1999	13.425780513289164
2000	13.149445178358917
2001	12.918997708263246
2002	12.702267246074504
2003	12.511476423859683
2004	12.287863917457214
2005	12.051759169898649
2006	11.833640268110681
2007	11.579222748448432
2008	11.370461957052028
2009	11.110365392220432
2010	10.90124050252421
2011	10.711688584734896
2012	10.50454838037155
2013	10.377941671865205
2014	10.1923034141124
2015	10.072186461176301
2016	9.858236275339657
2017	9.67601857056404
2018	9.443470301862739
2019	9.247746458628212
2020	8.987897048737054
2021	8.775372578809515
2022	8.600721193486567