Year	per 1,000
1990	16.896213455804354
1991	16.5783876808284
1992	16.459354676968868
1993	16.57805826348325
1994	16.10270570641053
1995	15.951705119186197
1996	15.889639045881315
1997	15.4405189307898
1998	15.184297917177156
1999	14.901955907735907
2000	14.574034208356252
2001	14.256993925581407
2002	13.906683230505077
2003	13.590493906686936
2004	13.249471743058702
2005	12.9042375845039
2006	12.606984689186035
2007	12.316419352152483
2008	12.158821176457469
2009	11.85672822027377
2010	11.672850344951614
2011	11.531133487848187
2012	11.391533210393312
2013	11.313903384936783
2014	11.170992808508425
2015	11.04359472603363
2016	10.859926753532552
2017	10.66046883842456
2018	10.433860507852359
2019	10.218273335574105
2020	9.967956590495199
2021	9.742957041695918
2022	9.569706278374548