Year	% (modeled ILO estimate)
1991	54.406
1992	54.466
1993	54.343
1994	54.37
1995	54.371
1996	54.474
1997	54.567
1998	54.64
1999	54.637
2000	54.703
2001	54.729
2002	54.889
2003	54.908
2004	54.938
2005	54.839
2006	54.783
2007	54.721
2008	54.7
2009	54.704
2010	54.704
2011	54.656
2012	54.514
2013	54.401
2014	53.618
2015	52.807
2016	51.911
2017	51.04
2018	50.235
2019	49.498
2020	48.494
2021	48.388
2022	49.122
2023	49.514