Year	Per 100 People
1998	0.10671
1999	0.22428
2000	1.40259
2001	4.45789
2002	7.86712
2003	11.9294
2004	15.45731
2005	19.0633
2006	23.08555
2007	25.51567
2008	27.6691
2009	29.03479
2010	30.83667
2011	32.17772
2012	33.31071
2013	34.33542
2014	35.75313
2015	36.50842
2016	37.59611
2017	38.31345