Year	% (modeled ILO estimate)
1991	74.316
1992	74.231
1993	74.113
1994	73.99
1995	73.88
1996	73.933
1997	73.961
1998	73.967
1999	73.939
2000	73.87
2001	73.896
2002	73.835
2003	73.711
2004	73.546
2005	73.348
2006	73.488
2007	73.627
2008	73.765
2009	73.902
2010	74.038
2011	74.173
2012	74.306
2013	74.439
2014	74.57
2015	74.7
2016	74.191
2017	73.716
2018	73.263
2019	72.81
2020	71.863
2021	71.572
2022	71.35
2023	71.426