Year	per 100,000 population
2000	20.10154283503365
2001	20.25139564055455
2002	20.428618400190963
2003	20.226236852831967
2004	20.067802967625727
2005	20.224068740655643
2006	20.245885247063615
2007	20.2988024400415
2008	20.15669427604385
2009	19.938441173085412
2010	19.89787234157923
2011	19.905665626850116
2012	19.663501420827806
2013	19.22129611370434
2014	18.819392641888125
2015	18.51711714890742
2016	18.34069028485325
2017	18.202240911632572
2018	18.170150699740518
2019	18.17275417479743