Year	%
1997	13.132137030995105
1998	15.354874344103834
1999	14.335198507860373
2000	15.157425466703813
2001	14.374830485489552
2002	16.118165327805123
2003	18.46901579586876
2004	19.009468317552795
2005	20.20863658418243
2006	20.34060925881506
2007	21.10685194058457
2008	22.161128376763095
2009	22.701286326822295
2010	23.00606060606062
2011	23.034647550776587
2012	24.485891917742705
2013	25.751282677742484
2014	27.46077032810271
2015	27.90110998990919
2016	28.801135020099316
2017	29.74051896207585
2018	31.196083003031024
2019	31.669776119402993
2020	32.75779376498802
2021	34.40886106429087
2022	35.73393348337083
2023	35.699588477366255