Year	%
1990	54.5799799408009
1991	55.2798015380297
1992	55.9018136577512
1993	56.4702956292588
1994	56.9859917957641
1995	57.4950573573608
1996	57.9651138470977
1997	58.3974658048229
1998	58.7932448236153
1999	59.1428605712263
2000	59.4845286635809
2001	59.8144231209709
2002	60.0684635907094
2003	60.3047480191038
2004	60.5014950390273
2005	60.7128267215319
2006	60.9377143839945
2007	61.1638678397123
2008	61.4102731804752
2009	61.6885084301668
2010	61.9757707038637
2011	62.3374562489663
2012	62.7111710394003
2013	63.0917030159594
2014	63.5179014029387
2015	64.0090235101358
2016	64.5285006541691
2017	65.0823939684177
2018	65.5980289644861
2019	66.042538677795
2020	66.4504297297503
2021	66.8668179527261
2022	67.2554537600811