Year	Per 100 People
1998	0.03003
1999	0.59119
2000	8.16692
2001	16.38559
2002	21.67593
2003	23.16066
2004	24.58126
2005	25.02789
2006	28.71961
2007	29.9822
2008	31.44098
2009	33.10821
2010	34.69885
2011	35.90239
2012	36.54022
2013	37.34861
2014	38.10404
2015	39.57891
2016	40.47038
2017	41.57512