Year	% (modeled ILO estimate)
1991	73.237
1992	73.22
1993	73.21
1994	73.204
1995	73.179
1996	73.106
1997	73.018
1998	73.052
1999	72.988
2000	72.9
2001	72.913
2002	72.912
2003	72.864
2004	73.897
2005	73.154
2006	72.434
2007	72.597
2008	72.556
2009	72.416
2010	72.304
2011	73.083
2012	72.618
2013	72.211
2014	72.669
2015	72.02
2016	73.091
2017	71.468
2018	70.911
2019	70.849
2020	65.231
2021	66.593
2022	70.778
2023	71.584