Year	%
1990	54.4880650680232
1991	55.1492897263151
1992	55.7557564340602
1993	56.3005029437704
1994	60.0416531679548
1995	60.3288407572823
1996	60.4877726688836
1997	60.7003934171885
1998	60.7145729343706
1999	60.6982661385515
2000	60.651230700728
2001	60.6065757884867
2002	60.6164030969442
2003	60.6889908776701
2004	60.7458292443572
2005	60.8132732826008
2006	60.8846563240792
2007	60.9497019487575
2008	61.004507340669
2009	61.0558523459559
2010	61.1039416128954
2011	61.1772138069928
2012	61.2969646600709
2013	61.445101852235
2014	61.6267157440482
2015	61.8161434977578
2016	62.0077278446961
2017	62.1845730879902
2018	62.3394923643281
2019	62.5021436769226
2020	62.6616871704745
2021	62.8206650570193
2022	62.9824940756987