Year	% (modeled ILO estimate)
1991	54.966
1992	54.835
1993	54.66
1994	54.421
1995	54.416
1996	54.311
1997	53.947
1998	53.802
1999	53.602
2000	53.204
2001	53.276
2002	53.249
2003	53.278
2004	53.247
2005	53.286
2006	53.452
2007	53.54
2008	53.61
2009	53.616
2010	53.511
2011	53.788
2012	54.005
2013	54.142
2014	54.253
2015	53.675
2016	53.111
2017	52.765
2018	52.394
2019	52.02
2020	50.659
2021	50.751
2022	51.987
2023	52.176