Year	%
1997	11.692171061620442
1998	13.070822231860717
1999	13.520105471324989
2000	13.904439526103372
2001	14.090700870361886
2002	15.197445911598784
2003	15.179207215760742
2004	15.89700056593096
2005	16.47454501071361
2006	16.969664226478294
2007	17.86920230152084
2008	18.442754632108816
2009	19.025086573792592
2010	19.15703781512605
2011	19.82776672599728
2012	20.755204297742647
2013	21.777447441070294
2014	22.188296516567547
2015	22.84929915793364
2016	23.091367424632168
2017	23.59033667437677
2018	24.09787827164318
2019	24.636603686517805
2020	25.5804311774461
2021	26.12846321469337
2022	26.467619401795677
2023	26.73574852063084