Year	% (modeled ILO estimate)
1991	46.981
1992	46.966
1993	46.292
1994	45.642
1995	45.582
1996	45.121
1997	45.647
1998	48.931
1999	49.647
2000	50.208
2001	50.796
2002	51.191
2003	50.8
2004	50.396
2005	50.522
2006	50.593
2007	50.649
2008	50.942
2009	50.043
2010	49.249
2011	47.491
2012	46.206
2013	45.275
2014	46.098
2015	46.889
2016	47.526
2017	49.005
2018	50.434
2019	50.868
2020	49.813
2021	50.112
2022	51.143
2023	51.483