Year	% (modeled ILO estimate)
1991	52.757
1992	51.938
1993	51.502
1994	51.881
1995	52.238
1996	52.123
1997	52.633
1998	53.721
1999	54.621
2000	55.423
2001	55.658
2002	56.575
2003	57.467
2004	57.742
2005	57.672
2006	58.047
2007	58.883
2008	58.944
2009	57.955
2010	57.812
2011	57.697
2012	57.805
2013	58.02
2014	57.547
2015	57.348
2016	57.426
2017	57.827
2018	57.899
2019	58.2
2020	53.842
2021	56.17
2022	57.816
2023	57.921