Year	% (modeled ILO estimate)
1991	56.853
1992	56.854
1993	56.867
1994	56.891
1995	56.919
1996	56.847
1997	56.709
1998	56.576
1999	56.445
2000	56.316
2001	56.076
2002	55.85
2003	55.635
2004	55.648
2005	55.664
2006	55.985
2007	55.526
2008	55.066
2009	54.605
2010	55.345
2011	54.953
2012	54.564
2013	54.175
2014	54
2015	53.824
2016	53.65
2017	55.781
2018	55.916
2019	56.024
2020	54.946
2021	55.712
2022	55.794
2023	55.727