Year	% (modeled ILO estimate)
1991	69.913
1992	69.693
1993	69.875
1994	76.272
1995	75.529
1996	75.201
1997	74.471
1998	73.676
1999	72.837
2000	71.987
2001	71.112
2002	70.214
2003	69.314
2004	68.448
2005	67.625
2006	66.818
2007	66.006
2008	65.198
2009	64.398
2010	63.596
2011	62.783
2012	61.961
2013	61.431
2014	60.86
2015	60.264
2016	59.647
2017	59.015
2018	58.376
2019	57.736
2020	57.215
2021	56.37
2022	55.81
2023	55.69