Year	% (modeled ILO estimate)
1991	48.292
1992	47.54
1993	46.638
1994	46.89
1995	47.246
1996	47.867
1997	48.223
1998	48.663
1999	48.872
2000	49.512
2001	50.344
2002	50.794
2003	51.454
2004	51.934
2005	52.323
2006	52.821
2007	53.183
2008	53.472
2009	54.671
2010	53.625
2011	53.813
2012	53.773
2013	53.972
2014	54.336
2015	54.68
2016	54.922
2017	55.165
2018	55.26
2019	55.533
2020	52.02
2021	53.125
2022	55.239
2023	55.596