Year	% (modeled ILO estimate)
1991	59.114
1992	58.494
1993	58.373
1994	57.898
1995	57.72
1996	57.259
1997	56.455
1998	55.654
1999	54.849
2000	54.037
2001	53.217
2002	52.391
2003	51.56
2004	50.724
2005	49.888
2006	49.973
2007	50.053
2008	50.145
2009	50.248
2010	50.343
2011	50.428
2012	49.362
2013	48.301
2014	47.245
2015	49.388
2016	51.538
2017	51.004
2018	50.658
2019	50.805
2020	47.923
2021	48.188
2022	51.452
2023	52.401