Year	% (modeled ILO estimate)
1991	65.629
1992	63.164
1993	61.62
1994	60.25
1995	59.409
1996	60.413
1997	60.292
1998	59.862
1999	59.387
2000	60.029
2001	58.349
2002	59.423
2003	58.465
2004	59.302
2005	59.422
2006	59.919
2007	58.804
2008	58.34
2009	57.286
2010	56.082
2011	55.819
2012	56.472
2013	56.541
2014	56.226
2015	57.183
2016	57.606
2017	56.933
2018	55.742
2019	55.809
2020	54.503
2021	51.963
2022	54.469
2023	55.126