Year	% (modeled ILO estimate)
1991	52.687
1992	52.646
1993	52.655
1994	54.568
1995	56.195
1996	56.395
1997	56.365
1998	56.335
1999	56.353
2000	56.282
2001	55.034
2002	53.793
2003	53.474
2004	54.266
2005	55.014
2006	54.434
2007	56.787
2008	56.78
2009	57.186
2010	56.27
2011	55.12
2012	54.245
2013	53.096
2014	52.223
2015	52.61
2016	52.331
2017	51.722
2018	50.906
2019	52.809
2020	51.456
2021	49.882
2022	51.471
2023	51.656