Year	% (modeled ILO estimate)
1991	16.329
1992	16.21
1993	16.233
1994	15.962
1995	16.019
1996	15.968
1997	16.067
1998	16
1999	15.912
2000	15.909
2001	15.833
2002	15.788
2003	15.766
2004	15.751
2005	15.736
2006	15.684
2007	15.664
2008	15.629
2009	15.62
2010	15.633
2011	15.631
2012	15.609
2013	15.648
2014	15.712
2015	15.894
2016	15.966
2017	15.952
2018	15.914
2019	15.942
2020	15.64
2021	15.633
2022	15.796
2023	15.896