Year	% (modeled ILO estimate)
1991	50.193
1992	50.017
1993	49.967
1994	49.89
1995	49.979
1996	49.889
1997	49.752
1998	49.486
1999	49.352
2000	49.192
2001	49.087
2002	48.993
2003	48.718
2004	49.539
2005	50.286
2006	49.827
2007	49.342
2008	48.882
2009	48.285
2010	48.17
2011	48.146
2012	48.04
2013	49.934
2014	50.096
2015	50.336
2016	50.57
2017	50.719
2018	50.363
2019	49.963
2020	48.782
2021	48.774
2022	48.892
2023	48.916