Year	% (modeled ILO estimate)
1991	67.726
1992	67.546
1993	67.395
1994	67.478
1995	67.383
1996	67.42
1997	67.547
1998	67.606
1999	67.642
2000	67.587
2001	68.052
2002	68.05
2003	68.626
2004	70.104
2005	71.682
2006	71.576
2007	71.471
2008	71.336
2009	70.999
2010	70.543
2011	71.789
2012	73.551
2013	73.101
2014	72.661
2015	72.206
2016	71.726
2017	71.261
2018	70.811
2019	70.364
2020	68.893
2021	68.637
2022	68.78
2023	68.958