Year	% (modeled ILO estimate)
1991	61.395
1992	61.236
1993	60.746
1994	60.743
1995	61.222
1996	62.008
1997	62.118
1998	61.904
1999	61.669
2000	61.588
2001	61.563
2002	61.805
2003	61.8
2004	61.94
2005	61.963
2006	62.119
2007	62.162
2008	62.065
2009	61.824
2010	61.614
2011	60.8
2012	61.013
2013	61.056
2014	61.124
2015	61.008
2016	60.894
2017	60.835
2018	60.83
2019	60.906
2020	60.921
2021	62.907
2022	62.21
2023	62.34