Year	% (modeled ILO estimate)
1991	62.476
1992	62.608
1993	62.189
1994	61.772
1995	61.422
1996	61.344
1997	61.524
1998	60.746
1999	59.909
2000	59.474
2001	58.878
2002	57.93
2003	57.58
2004	57.562
2005	57.731
2006	57.888
2007	58.041
2008	57.754
2009	56.825
2010	56.541
2011	56.554
2012	56.437
2013	56.856
2014	57.306
2015	57.483
2016	58.112
2017	58.736
2018	59.932
2019	60.553
2020	60.209
2021	60.362
2022	60.875
2023	61.244