Year	% (modeled ILO estimate)
1991	68.281
1992	68.477
1993	68.567
1994	67.941
1995	68.457
1996	67.955
1997	67.786
1998	67.683
1999	67.309
2000	67.543
2001	68.043
2002	68.425
2003	67.936
2004	68.361
2005	67.94
2006	68.511
2007	68.252
2008	68.034
2009	67.92
2010	67.24
2011	67.143
2012	66.278
2013	65.412
2014	64.597
2015	64.134
2016	63.63
2017	62.224
2018	62.888
2019	63.687
2020	60.695
2021	62.271
2022	62.376
2023	61.886