Year	% (modeled ILO estimate)
1991	61.974
1992	59.829
1993	58.073
1994	56.662
1995	54.279
1996	53.261
1997	52.796
1998	53.16
1999	53.574
2000	53.314
2001	53.069
2002	52.448
2003	51.869
2004	50.193
2005	52.047
2006	52.806
2007	53.612
2008	54.367
2009	53.894
2010	53.369
2011	54.448
2012	52.912
2013	52.568
2014	51.712
2015	50.192
2016	50.65
2017	51.009
2018	52.21
2019	53.871
2020	53.406
2021	54.845
2022	55.981
2023	56.691