Year	% (modeled ILO estimate)
1991	47.86535895882691
1992	48.07413169974857
1993	48.34446050295922
1994	48.58863728366531
1995	48.60821883523556
1996	48.69394863658735
1997	48.55556081005535
1998	48.409470459170684
1999	48.31702229780288
2000	48.337183247447186
2001	48.33984080066144
2002	48.31540027744821
2003	48.21741621824822
2004	48.18501533875948
2005	47.921001105023805
2006	48.88183119102736
2007	49.91618975420052
2008	50.97395957018615
2009	52.10082602618459
2010	53.10924763308416
2011	54.08747485401795
2012	53.484199580318894
2013	52.987789964851096
2014	52.49947103506255
2015	51.917770757521744
2016	51.263088172161765
2017	51.33485365192977
2018	51.50127869250968
2019	51.67721645186327
2020	51.03488971141731
2021	51.19771386137147
2022	52.01079009187654
2023	52.55729793533287