Year	% (modeled ILO estimate)
1991	62.629
1992	61.264
1993	60.725
1994	62.865
1995	64.401
1996	64.705
1997	65.919
1998	67.095
1999	67.228
2000	67.949
2001	68.608
2002	69.013
2003	68.429
2004	70.684
2005	71.006
2006	71.571
2007	72.537
2008	72.101
2009	71.177
2010	69.83
2011	69.756
2012	69.435
2013	69.723
2014	70.345
2015	69.439
2016	66.979
2017	65.998
2018	65.009
2019	64.086
2020	61.399
2021	60.151
2022	61.692
2023	61.899