Year	% (modeled ILO estimate)
1991	57.85
1992	55.388
1993	53.529
1994	53.664
1995	53.526
1996	52.303
1997	50.406
1998	52.193
1999	54.02
2000	55.989
2001	56.516
2002	57.919
2003	58.925
2004	58.515
2005	59.005
2006	59.646
2007	60.166
2008	60.457
2009	57.583
2010	57.121
2011	56.851
2012	56.023
2013	56.589
2014	57.379
2015	57.623
2016	57.322
2017	58.008
2018	57.537
2019	59.184
2020	49.758
2021	56.007
2022	59.489
2023	58.328