Year	Per 100 People
1998	0.02517
1999	0.16963
2000	0.67014
2001	3.00258
2002	7.34733
2003	11.64787
2004	15.25356
2005	18.15636
2006	20.58573
2007	22.02478
2008	23.42867
2009	25.56122
2010	26.52764
2011	27.77799
2012	28.13472
2013	28.77236
2014	29.48508
2015	30.37514
2016	31.15933
2017	31.6828