Year	% (modeled ILO estimate)
1991	55.867
1992	54.823
1993	54.449
1994	57.097
1995	59.287
1996	59.234
1997	57.668
1998	58.497
1999	59.543
2000	60.794
2001	60.612
2002	60.269
2003	61.273
2004	61.613
2005	62.42
2006	62.947
2007	63.292
2008	63.535
2009	60.749
2010	59.757
2011	60.233
2012	59.49
2013	58.763
2014	58.016
2015	58.788
2016	58.832
2017	58.764
2018	60.361
2019	60.789
2020	57.823
2021	62.275
2022	63.754
2023	62.295