Year	%
2000	16.983104196948233
2001	16.514190737249763
2002	16.24116427885439
2003	15.9480636890073
2004	15.47283384020168
2005	15.233383134195677
2006	14.756741824276173
2007	14.526318729022385
2008	14.239420922289206
2009	13.876803488261421
2010	13.55823804983712
2011	13.287045317297542
2012	13.080237941766024
2013	12.827036687992598
2014	12.646891474702912
2015	12.561462792670346
2016	12.489451666864765
2017	12.266453196059869
2018	12.146940568955678
2019	12.017009282484944