Year	%
1997	8.709946769648262
1998	10.942578548212358
1999	11.0249742407144
2000	11.432834429057676
2001	11.988685813751085
2002	13.267123897746504
2003	13.045634920634926
2004	13.832190559232695
2005	14.50384557381994
2006	15.000187596143023
2007	15.911054351500582
2008	16.49220489977728
2009	17.236347718235873
2010	17.407809110629064
2011	18.17626338868521
2012	19.276385457112596
2013	19.987519271712802
2014	20.41210795040117
2015	21.111513396089794
2016	21.449052381285412
2017	21.856717463653876
2018	22.190516451772005
2019	22.532900478235067
2020	23.49691948162312
2021	24.019312009656005
2022	24.471760555696985
2023	24.848884492801407