Year	% (modeled ILO estimate)
1991	75.036
1992	73.916
1993	73.577
1994	73.002
1995	72.592
1996	71.812
1997	71.058
1998	70.536
1999	68.917
2000	69.451
2001	70.046
2002	69.761
2003	70.112
2004	70.353
2005	70.201
2006	70.18
2007	70.754
2008	70.477
2009	67.328
2010	66.661
2011	64.685
2012	61.531
2013	58.347
2014	57.431
2015	57.013
2016	57.997
2017	59.416
2018	62.188
2019	64.36
2020	63.811
2021	65.044
2022	66.594
2023	65.966