Year	% (modeled ILO estimate)
1991	71.674
1992	71.256
1993	69.228
1994	67.798
1995	68.317
1996	67.414
1997	66.571
1998	66.097
1999	64.495
2000	64.019
2001	63.492
2002	62.919
2003	62.345
2004	61.828
2005	61.384
2006	61.038
2007	60.84
2008	60.455
2009	60.995
2010	60.935
2011	60.733
2012	60.472
2013	60.29
2014	60.096
2015	59.911
2016	59.777
2017	59.458
2018	59.11
2019	59.936
2020	57.741
2021	59.792
2022	61.173
2023	60.891