Year	% (modeled ILO estimate)
1991	63.618
1992	62.141
1993	62.516
1994	62.884
1995	64.641
1996	64.367
1997	61.847
1998	61.072
1999	60.298
2000	59.493
2001	58.683
2002	57.877
2003	57.059
2004	57.651
2005	56.987
2006	56.335
2007	55.714
2008	55.01
2009	54.332
2010	53.653
2011	52.973
2012	47.204
2013	47.242
2014	46.326
2015	42.368
2016	43.771
2017	41.379
2018	44.207
2019	44.402
2020	42.279
2021	43.129
2022	42.591
2023	42.373