Year	% (modeled ILO estimate)
1991	76.205
1992	76.079
1993	75.978
1994	75.859
1995	75.741
1996	75.266
1997	74.802
1998	74.343
1999	73.878
2000	73.401
2001	72.879
2002	72.358
2003	71.875
2004	71.407
2005	70.943
2006	70.384
2007	68.607
2008	66.839
2009	65.059
2010	63.235
2011	61.404
2012	59.576
2013	57.749
2014	55.929
2015	54.12
2016	52.312
2017	54.112
2018	54.149
2019	54.145
2020	53.464
2021	52.857
2022	52.217
2023	51.798