Year	% (modeled ILO estimate)
1991	50.458
1992	50.907
1993	51.026
1994	51.192
1995	51.245
1996	51.25
1997	51.187
1998	51.131
1999	51.059
2000	51
2001	50.926
2002	50.852
2003	50.765
2004	50.572
2005	50.375
2006	50.145
2007	49.82
2008	49.491
2009	49.184
2010	48.943
2011	48.672
2012	48.337
2013	47.978
2014	47.633
2015	47.26
2016	46.961
2017	46.764
2018	46.497
2019	46.207
2020	45.52
2021	45.305
2022	44.86
2023	44.777