Year	% (modeled ILO estimate)
1991	63.89
1992	63.115
1993	65.141
1994	67.396
1995	67.855
1996	66.592
1997	64.915
1998	62.835
1999	61.984
2000	61.987
2001	61.287
2002	59.36
2003	58.949
2004	59.945
2005	61.048
2006	61.923
2007	63.439
2008	64.477
2009	62.12
2010	63.132
2011	64.172
2012	66.697
2013	66.946
2014	67.208
2015	67.606
2016	67.801
2017	68.022
2018	67.401
2019	67.013
2020	64.608
2021	63.782
2022	65.877
2023	66.403