Year	Percent
2000	5.34
2001	3.59
2007	2.07
2008	1.34
2009	0.8
2010	0.97
2011	0.6
2012	1.58
2013	0.75
2014	1.04
2015	0.73
2016	1.11
2017	0.38
2019	2.52