Year	% (modeled ILO estimate)
1991	66.327
1992	65.08
1993	58.403
1994	56.868
1995	56.666
1996	55.347
1997	58.399
1998	57.784
1999	57.846
2000	55.267
2001	54.724
2002	56.322
2003	57.007
2004	58.304
2005	58.994
2006	62.649
2007	64.575
2008	63.784
2009	53.03
2010	50.236
2011	53.116
2012	55.673
2013	57.764
2014	58.598
2015	59.914
2016	59.781
2017	61.157
2018	62.597
2019	63.104
2020	62.28
2021	61.591
2022	62.32
2023	62.979