Year	% (modeled ILO estimate)
1991	53.93
1992	54.558
1993	54.281
1994	56.969
1995	56.845
1996	55.724
1997	55.43
1998	55.601
1999	56.217
2000	55.957
2001	55.905
2002	56.1
2003	56.323
2004	54.575
2005	55.139
2006	55.833
2007	56.892
2008	57.557
2009	57.109
2010	57.348
2011	57.559
2012	57.672
2013	57.535
2014	57.164
2015	57.113
2016	57.426
2017	57.703
2018	58.297
2019	58.514
2020	57.648
2021	57.2
2022	58.441
2023	58.453