Year	% (modeled ILO estimate)
1991	57.823
1992	57.87
1993	57.846
1994	57.748
1995	57.576
1996	57.706
1997	57.697
1998	57.604
1999	57.501
2000	57.429
2001	57.555
2002	57.669
2003	57.769
2004	57.849
2005	57.906
2006	58.244
2007	58.498
2008	58.686
2009	58.818
2010	58.889
2011	59.253
2012	59.488
2013	59.614
2014	59.651
2015	59.97
2016	59.403
2017	58.832
2018	56.177
2019	53.462
2020	50.623
2021	50.428
2022	50.349
2023	50.966