Year	% (modeled ILO estimate)
1991	52.79
1992	53.265
1993	53.69
1994	53.744
1995	53.805
1996	53.944
1997	54.321
1998	54.532
1999	54.698
2000	54.748
2001	53.121
2002	53.667
2003	52.7
2004	53.268
2005	52.889
2006	54.063
2007	54.258
2008	54.849
2009	52.436
2010	53.755
2011	54.618
2012	55.436
2013	54.914
2014	55.53
2015	57.291
2016	57.904
2017	58.734
2018	60.033
2019	60.88
2020	56.66
2021	58.306
2022	59.743
2023	60.348