Year	% (modeled ILO estimate)
1991	51.577
1992	50.583
1993	49.845
1994	50.209
1995	43.612
1996	52.253
1997	56.256
1998	58.894
1999	58.118
2000	60.931
2001	59.386
2002	56.283
2003	56.348
2004	53.079
2005	53.249
2006	51.886
2007	52.818
2008	56.573
2009	50.936
2010	50.385
2011	49.446
2012	50.708
2013	49.939
2014	48.257
2015	49.076
2016	47.016
2017	47.316
2018	48.411
2019	49.511
2020	48.831
2021	51.454
2022	56.383
2023	57.097