Year	% (modeled ILO estimate)
1991	50.441
1992	50.416
1993	50.405
1994	50.414
1995	50.805
1996	51.193
1997	51.575
1998	51.956
1999	52.335
2000	52.71
2001	52.143
2002	51.572
2003	51.01
2004	50.447
2005	49.886
2006	49.947
2007	50.008
2008	50.065
2009	50.126
2010	50.187
2011	49.633
2012	49.073
2013	48.933
2014	48.77
2015	48.568
2016	48.3
2017	48
2018	47.681
2019	47.908
2020	46.485
2021	47.887
2022	49.825
2023	52.756