Year	%
2000	16.90665
2001	20.3418
2002	22.34915
2003	22.98596
2004	18.44904
2005	17.11406
2006	20.35689
2007	20.36369
2008	17.95285
2009	17.61834
2010	18.52412
2011	17.38857
2012	17.39469
2013	18.01511
2014	20.54765
2015	21.10145
2016	21.07922
2017	20.57237
2018	18.25743
2019	17.73499
2020	6.016353
2021	9.90399