Year	% (modeled ILO estimate)
1991	64.928
1992	64.495
1993	63.99
1994	63.56
1995	60.511
1996	58.992
1997	57.668
1998	55.743
1999	55.008
2000	54.729
2001	54.773
2002	54.981
2003	55.279
2004	55.182
2005	55.585
2006	55.477
2007	56.435
2008	56.823
2009	54.881
2010	55.828
2011	56.381
2012	56.984
2013	57.615
2014	56.151
2015	56.97
2016	56.811
2017	56.957
2018	57.978
2019	59.31
2020	57.2
2021	56.895