Year	%
1997	7.524811139090509
1998	8.073674006370313
1999	8.583815028901736
2000	8.428104066053903
2001	9.352409638554215
2002	10.79722939019422
2003	11.088861076345438
2004	11.491809428535705
2005	12.8439219609805
2006	12.839841819080581
2007	14.205844980940281
2008	15.910735826296747
2009	16.785037878787886
2010	16.694175901909926
2011	17.041095890410958
2012	17.638500279798542
2013	18.351920693928133
2014	19.940344675209904
2015	20.19177165793288
2016	20.309437854564212
2017	20.261302364164255
2018	20.084477296726508
2019	20.037966673697543
2020	21.81502764827064
2021	22.27529309596179
2022	23.09944813605136
2023	23.189879137015694