Year	% (modeled ILO estimate)
1991	66.105
1992	66.288
1993	66.273
1994	66.263
1995	66.639
1996	67.01
1997	67.397
1998	67.792
1999	68.187
2000	68.586
2001	68.989
2002	69.393
2003	69.802
2004	70.216
2005	70.639
2006	70.664
2007	70.689
2008	70.716
2009	70.746
2010	70.779
2011	70.814
2012	70.85
2013	70.89
2014	70.232
2015	69.574
2016	69.039
2017	68.482
2018	67.943
2019	67.415
2020	66.791
2021	66.589
2022	66.093
2023	66.111