Year	per million people
1996	654.78615
1997	602.47065
1998	566.63041
1999	547.91886
2000	570.26779
2001	575.42059
2002	574.40759
2003	556.76308
2004	552.19076
2005	516.82262
2006	517.945
2007	511.3348
2008	486.88029
2009	474.11193
2010	474.22877
2011	490.53247
2012	475.24238
2013	483.31047
2014	496.61687
2015	483.64295
2016	460.89708
2017	451.2263
2018	437.83869