Year	% (modeled ILO estimate)
1991	48.009
1992	46.854
1993	46.14
1994	45.539
1995	44.933
1996	43.952
1997	43.701
1998	43.191
1999	43.09
2000	42.94
2001	42.837
2002	42.875
2003	42.96
2004	42.708
2005	42.58
2006	42.449
2007	42.318
2008	42.911
2009	43.5
2010	44.085
2011	44.667
2012	45.245
2013	45.822
2014	46.397
2015	47.026
2016	47.697
2017	48.324
2018	48.918
2019	49.504
2020	43.481
2021	44.367
2022	44.565
2023	44.586