Year	% (modeled ILO estimate)
1991	51.269
1992	49.75
1993	48.579
1994	48.613
1995	49.016
1996	48.276
1997	48.143
1998	49.375
1999	48.906
2000	49.876
2001	50.05
2002	46.468
2003	45.532
2004	44.496
2005	45.655
2006	46.475
2007	48.137
2008	48.118
2009	43.34
2010	41.418
2011	43.588
2012	41.68
2013	40.903
2014	41.326
2015	42.564
2016	43.094
2017	43.765
2018	44.606
2019	44.389
2020	42.887
2021	42.974
2022	45.029
2023	45.12