Year	% (modeled ILO estimate)
1991	77.383
1992	77.235
1993	77.224
1994	79.364
1995	79.056
1996	78.925
1997	78.548
1998	77.846
1999	77.172
2000	76.481
2001	75.769
2002	75.009
2003	74.252
2004	73.451
2005	72.661
2006	71.841
2007	70.999
2008	70.53
2009	69.901
2010	68.956
2011	68.264
2012	67.481
2013	68.779
2014	69.833
2015	71.245
2016	72.176
2017	73.741
2018	74.863
2019	75.952
2020	75.189
2021	75.772
2022	75.851
2023	75.624