Year	% (modeled ILO estimate)
1991	74.155
1992	73.883
1993	73.602
1994	73.045
1995	72.532
1996	71.965
1997	71.381
1998	70.782
1999	70.26
2000	69.712
2001	69.188
2002	68.66
2003	68.138
2004	68.435
2005	68.791
2006	69.19
2007	68.803
2008	68.449
2009	68.061
2010	67.698
2011	67.347
2012	67
2013	66.603
2014	66.183
2015	65.799
2016	65.452
2017	65.068
2018	64.668
2019	64.729
2020	63.862
2021	63.398
2022	64.681
2023	64.918