Year	% (modeled ILO estimate)
1991	48.917
1992	49.135
1993	49.374
1994	49.38
1995	49
1996	49.258
1997	49.323
1998	50.015
1999	50.195
2000	50.214
2001	50.227
2002	50.162
2003	49.809
2004	49.547
2005	49.309
2006	48.823
2007	48.498
2008	48.597
2009	48.485
2010	47.843
2011	47.487
2012	47.439
2013	47.38
2014	47.33
2015	44.812
2016	42.32
2017	39.867
2018	37.463
2019	35.12
2020	39.8
2021	37.663
2022	37.48
2023	37.796