Year	% (modeled ILO estimate)
1991	44.896
1992	44.936
1993	46.384
1994	47.831
1995	51.562
1996	52.189
1997	52.808
1998	54.854
1999	56.991
2000	52.041
2001	55.157
2002	57.151
2003	59.122
2004	61.063
2005	62.969
2006	66.02
2007	67.81
2008	68.48
2009	68.641
2010	69.111
2011	67.721
2012	67.252
2013	65.792
2014	64.131
2015	60.652
2016	60.542
2017	62.19
2018	62.05
2019	62.22
2020	55.94
2021	57.789
2022	55.951
2023	54.211