Year	% (modeled ILO estimate)
1991	57.932
1992	57.805
1993	55.286
1994	53.694
1995	52.754
1996	50.81
1997	50.481
1998	48.834
1999	49.495
2000	49.747
2001	49.99
2002	50.231
2003	50.46
2004	50.926
2005	50.651
2006	50.352
2007	49.989
2008	49.635
2009	49.658
2010	49.5
2011	49.337
2012	49.173
2013	48.996
2014	48.808
2015	48.606
2016	48.394
2017	47.992
2018	47.557
2019	47.142
2020	46.424
2021	45.679
2022	46.992
2023	47.137