Year	per million people
1996	34.22901
1997	39.30593
1998	35.15427
1999	38.06549
2000	37.33385
2001	39.88021
2002	39.40418
2003	46.78511
2004	49.86213
2005	69.9943
2006	83.25706
2007	106.63505
2008	108.09362
2009	123.01399
2010	143.12489
2011	172.25079
2012	190.02195
2013	197.97172
2014	208.25998
2015	220.52787
2016	316.20535
2017	353.73836