Year	% (modeled ILO estimate)
1991	47.615
1992	46.9
1993	47.12
1994	48.251
1995	49.834
1996	50.699
1997	52.18
1998	55.445
1999	58.055
2000	59.829
2001	60.142
2002	59.939
2003	59.977
2004	60.238
2005	62.284
2006	62.956
2007	63.302
2008	61.476
2009	56.008
2010	53.504
2011	52.449
2012	52.117
2013	53.453
2014	54.426
2015	55.694
2016	56.976
2017	57.821
2018	58.592
2019	59.254
2020	57.685
2021	59.382
2022	61.935
2023	62.15