Year	%
1990	56.03280144304956
1991	56.509088902469784
1992	57.14877796659108
1993	57.78063724477049
1994	57.975778402436724
1995	58.28831923294898
1996	58.544787164462406
1997	58.72218481874655
1998	58.845840955238174
1999	58.97982788389637
2000	59.14656931113052
2001	59.21970757686194
2002	59.336899296042546
2003	59.40028938993556
2004	59.48750153966018
2005	59.59174217523932
2006	59.72815235368062
2007	59.77981527771837
2008	59.867986752891305
2009	59.97254676762234
2010	60.09690840623074
2011	60.28104179999781
2012	60.498049301643476
2013	60.777138141455445
2014	61.061984776228265
2015	61.294667975463646
2016	61.50958571672784
2017	61.71841001897404
2018	61.96085861998132
2019	62.13892661151552
2020	62.35312520669987
2021	62.56856384045868
2022	62.81503449317998