Year	% (modeled ILO estimate)
1991	48.675
1992	48.372
1993	48.505
1994	48.31
1995	48.948
1996	49.586
1997	50.224
1998	50.862
1999	51.5
2000	51.284
2001	51.067
2002	50.851
2003	50.635
2004	50.418
2005	50.202
2006	49.986
2007	49.769
2008	49.553
2009	49.336
2010	49.12
2011	48.046
2012	46.974
2013	45.905
2014	44.84
2015	38.717
2016	39.117
2017	39.43
2018	39.63
2019	39.813
2020	39.387
2021	39.427
2022	39.556
2023	39.592