Year	% (modeled ILO estimate)
1991	72.826
1992	72.841
1993	72.463
1994	71.456
1995	71.158
1996	69.528
1997	69.156
1998	67.631
1999	67.372
2000	67.724
2001	68.091
2002	68.49
2003	68.918
2004	69.286
2005	69.685
2006	70.056
2007	70.387
2008	70.199
2009	69.952
2010	69.77
2011	69.563
2012	69.657
2013	69.691
2014	69.575
2015	69.548
2016	69.588
2017	69.166
2018	69.842
2019	70.48
2020	69.365
2021	69.305
2022	70.436
2023	70.522