Year	%
1990	57.2375614513912
1991	57.6114675907988
1992	57.9800597052578
1993	58.3388468198382
1994	58.6810838478518
1995	59.0051385783649
1996	59.3017901671545
1997	59.5660345734234
1998	59.7928826720835
1999	59.9720074026592
2000	60.0925678497952
2001	60.1564580862014
2002	60.1787670628307
2003	60.1843618165274
2004	60.176240317468
2005	60.1523291755927
2006	60.138992518997
2007	60.1583936143677
2008	60.1923690950915
2009	60.2269754055468
2010	60.267626931459
2011	60.3200331540295
2012	60.4998261324455
2013	60.8348946559275
2014	61.2032941061263
2015	61.556151712886
2016	61.8954540037458
2017	62.1922732261345
2018	62.4499289313865
2019	62.6930244310734
2020	62.933085109416
2021	63.1722658051216
2022	63.4046777159548