Year	% (modeled ILO estimate)
1991	39.19905027380678
1992	38.9752666486513
1993	37.97229823420859
1994	37.308294090918395
1995	36.87211908929278
1996	37.0134401387457
1997	37.30083106605447
1998	36.74040597609204
1999	36.678337255002255
2000	36.733124689045724
2001	37.38064523636057
2002	38.10126405820091
2003	38.21305735526969
2004	38.323394852781256
2005	38.08601688083096
2006	37.918593429392786
2007	37.52525143818846
2008	37.06029865874105
2009	36.960399497887
2010	36.910905587692234
2011	36.200964431326724
2012	34.59138107040393
2013	34.27120106443792
2014	33.78100556999901
2015	33.21511317511083
2016	33.18692346932956
2017	32.54062531670832
2018	31.969103385866088
2019	31.354883101133822
2020	31.58014876565276
2021	32.26111062148548
2022	32.497910762423786
2023	32.517705393301185