Year	% (modeled ILO estimate)
1991	65.206
1992	65.11
1993	65.441
1994	65.609
1995	65.233
1996	64.74
1997	63.301
1998	61.869
1999	60.465
2000	59.072
2001	57.688
2002	56.317
2003	54.961
2004	53.614
2005	52.283
2006	50.961
2007	49.662
2008	48.375
2009	47.102
2010	46.289
2011	44.951
2012	43.631
2013	42.65
2014	42.345
2015	40.071
2016	39.264
2017	39.169
2018	39.105
2019	39.093
2020	36.09
2021	36.603
2022	36.574
2023	37.263