Year	% (modeled ILO estimate)
1991	64.326
1992	64.281
1993	64.237
1994	63.636
1995	63.014
1996	62.415
1997	61.792
1998	61.176
1999	60.545
2000	59.906
2001	59.278
2002	58.651
2003	58.026
2004	57.402
2005	56.763
2006	56.104
2007	55.421
2008	54.747
2009	54.098
2010	53.457
2011	52.794
2012	52.143
2013	51.47
2014	50.821
2015	50.151
2016	49.468
2017	48.785
2018	48.122
2019	48.199
2020	47.6
2021	47.568
2022	48.067
2023	48.241