Year	%
1990	54.5782656375547
1991	55.2607805348109
1992	55.820964031424
1993	56.3079750019652
1994	56.7162773027093
1995	56.9184542880852
1996	57.0624088065567
1997	57.1839883141345
1998	57.3476271077071
1999	57.5269400002956
2000	57.6761261984846
2001	57.8065176002317
2002	57.9212855814998
2003	58.0198870424125
2004	58.1149170009288
2005	58.2281256811472
2006	58.3811570849639
2007	58.5878493297544
2008	58.8344724765176
2009	59.0723695519682
2010	59.3020085315448
2011	59.5088083751315
2012	59.7105607205113
2013	59.9284605329596
2014	60.1757540823476
2015	60.4320192737725
2016	60.7003651129912
2017	60.9869149722455
2018	61.2657167075849
2019	61.5373831924581
2020	61.8357314654627
2021	62.1329736928756
2022	62.417010973973