Year	%
2000	6.83028179331357
2001	8.00083742151754
2002	6.58628549667601
2003	4.65656368194509
2004	4.22617544854177
2005	3.68506394302508
2006	2.45452534963198
2007	5.68211734419274
2008	3.13011678919177
2009	3.74100549201086
2010	4.37272928691286
2011	3.85933735767356
2012	4.18520747199109
2013	2.68785970707065
2014	2.15650347319848
2015	1.44819136922413
2016	2.23687311841103
2017	2.4244606567932
2018	3.08925674923103
2019	3.83835127206916
2020	6.21222696198206
2021	8.48402866054706