Year	per million people
1996	788.14616
1997	800.93426
1998	802.74256
1999	714.74782
2000	666.20845
2001	615.37128
2002	561.4688
2003	459.82895
2004	444.9585
2005	415.78355
2006	422.97431
2007	414.52633
2008	392.08271
2009	348.11086
2010	386.19291
2011	355.02355
2012	383.90445
2013	329.36012
2014	366.54489
2015	389.22947
2016	412.14273
2017	484.0612
2018	520.62951