Year	% (modeled ILO estimate)
1991	67.412
1992	65.55
1993	64.689
1994	66.047
1995	67.126
1996	66.984
1997	66.726
1998	64.983
1999	62.968
2000	62.68
2001	62.978
2002	63.637
2003	62.416
2004	62.193
2005	62.364
2006	64.425
2007	64.515
2008	63.032
2009	61.373
2010	59.864
2011	59.63
2012	59.271
2013	57.89
2014	60.048
2015	61.398
2016	62.368
2017	63.2
2018	63.722
2019	63.533
2020	62.882
2021	64.852
2022	67.514
2023	68.927