Year	% (modeled ILO estimate)
1991	49.869
1992	50.009
1993	49.626
1994	50.071
1995	49.359
1996	48.568
1997	48.556
1998	48.341
1999	48.126
2000	47.345
2001	46.568
2002	46.107
2003	45.629
2004	45.141
2005	44.71
2006	44.547
2007	43.863
2008	43.822
2009	44.524
2010	44.559
2011	44.151
2012	44.78
2013	44.941
2014	45.03
2015	44.59
2016	43.689
2017	43.612
2018	43.92
2019	43.543
2020	43.129
2021	42.995
2022	43.425
2023	43.516