Year	%
2001	16.31164021219908
2002	14.818094498795128
2003	15.174277202772224
2004	17.92724293228851
2005	19.431614574498933
2006	19.149638649623206
2007	18.237494038804247
2008	16.742654145601378
2009	21.271622236160603
2010	21.76735699586691
2011	21.261957835669747
2012	20.31968117989341
2013	20.504133385185558
2014	19.5305023155101
2015	20.969494534385813
2016	20.503361400007172
2017	19.49430466845547
2018	19.49824801628374
2019	19.51181610489767
2020	20.781186032330695
2021	22.641199531269457
2022	21.221405725588347
2023	22.225403719861184