Year	% (modeled ILO estimate)
1991	48.926
1992	48.548
1993	48.018
1994	46.59
1995	46.198
1996	44.12
1997	43.704
1998	41.726
1999	41.394
2000	41.969
2001	42.433
2002	43.011
2003	43.683
2004	44.129
2005	44.725
2006	45.337
2007	45.826
2008	45.543
2009	44.95
2010	44.435
2011	43.851
2012	43.445
2013	43.128
2014	42.493
2015	42.133
2016	41.886
2017	41.174
2018	41.758
2019	42.298
2020	41.786
2021	41.2
2022	41.76
2023	41.761