Year	% (modeled ILO estimate)
1991	59.612
1992	59.537
1993	59.583
1994	59.517
1995	59.567
1996	59.579
1997	59.581
1998	59.637
1999	59.63
2000	59.592
2001	59.632
2002	59.595
2003	59.647
2004	59.531
2005	59.551
2006	59.475
2007	59.461
2008	59.423
2009	59.407
2010	59.412
2011	59.357
2012	59.277
2013	59.231
2014	59.262
2015	60.381
2016	58.771
2017	57.043
2018	54.752
2019	52.103
2020	48.832
2021	49.583
2022	49.559
2023	50.004