Year	% (modeled ILO estimate)
1991	87.837
1992	87.305
1993	86.577
1994	85.932
1995	85.327
1996	84.571
1997	83.786
1998	82.979
1999	82.155
2000	81.333
2001	80.501
2002	79.616
2003	78.607
2004	77.627
2005	76.457
2006	75.224
2007	76.289
2008	77.311
2009	77.854
2010	78.354
2011	78.714
2012	79.034
2013	79.321
2014	79.544
2015	79.579
2016	79.566
2017	79.459
2018	79.292
2019	78.974
2020	77.829
2021	78.297
2022	78.136
2023	78.179