Year	% (modeled ILO estimate)
1991	58.57
1992	59.33
1993	55.653
1994	56.312
1995	55.453
1996	52.871
1997	51.532
1998	51.388
1999	50.801
2000	48.687
2001	47.332
2002	47.785
2003	46.47
2004	47.622
2005	48.95
2006	49.22
2007	51.075
2008	51.775
2009	50.98
2010	49.328
2011	50.189
2012	50.601
2013	50.091
2014	50.252
2015	49.012
2016	49.341
2017	49.315
2018	49.145
2019	48.713
2020	48.589
2021	45.873
2022	48.401
2023	50.39