Year	per million people
1997	159.91058
1998	170.72683
1999	156.49672
2000	158.28249
2001	166.62351
2002	161.13902
2003	168.76765
2004	180.99878
2005	200.24204
2006	207.45801
2007	194.83778
2008	205.4882
2009	227.03476
2010	247.45846
2011	272.47976
2012	307.17135
2013	320.69368
2014	318.78033
2015	326.07927
2016	328.60276
2017	349.52207
2018	398.051