Year	% (modeled ILO estimate)
1991	62.626
1992	58.711
1993	55.597
1994	55.567
1995	55.561
1996	56.013
1997	57.596
1998	58.305
1999	57.152
2000	57.824
2001	57.742
2002	56.997
2003	55.586
2004	56.446
2005	55.767
2006	54.632
2007	53.892
2008	53.278
2009	47.85
2010	47.531
2011	46.265
2012	46.339
2013	46.37
2014	48.224
2015	50.217
2016	50.408
2017	50.263
2018	51.307
2019	50.073
2020	46.515
2021	43.291
2022	47.294
2023	47.059