Year	% (modeled ILO estimate)
1991	76.254
1992	76.992
1993	78.233
1994	78.379
1995	77.222
1996	74.944
1997	74.61
1998	72.238
1999	68.02
2000	68.148
2001	72.506
2002	71.65
2003	73.116
2004	72.299
2005	73.115
2006	72.359
2007	71.532
2008	71.568
2009	72.99
2010	73.203
2011	74.093
2012	74.375
2013	73.957
2014	73.969
2015	73.997
2016	73.099
2017	72.614
2018	71.975
2019	70.44
2020	66.508
2021	69.079
2022	69.386
2023	69.909