Year	% (modeled ILO estimate)
1991	52.286
1992	51.88
1993	51.462
1994	51.17
1995	50.877
1996	50.585
1997	50.292
1998	49.999
1999	49.706
2000	49.413
2001	49.121
2002	48.828
2003	48.816
2004	48.803
2005	48.792
2006	48.78
2007	48.768
2008	48.756
2009	48.745
2010	48.733
2011	48.722
2012	48.711
2013	48.7
2014	48.69
2015	48.68
2016	48.67
2017	48.66
2018	48.649
2019	43.808
2020	43.392
2021	43.019
2022	44.057
2023	44.543