Year	% (modeled ILO estimate)
1991	61.041
1992	60.817
1993	60.005
1994	58.777
1995	58.493
1996	58.726
1997	59.252
1998	59.225
1999	56.384
2000	54.531
2001	53.131
2002	50.872
2003	50.544
2004	50.734
2005	52.653
2006	54.33
2007	56.653
2008	58.93
2009	58.774
2010	58.34
2011	58.799
2012	58.755
2013	58.68
2014	59.741
2015	60.345
2016	61.449
2017	62.628
2018	63.116
2019	63.732
2020	63.781
2021	64.146
2022	64.581
2023	64.981