Year	% (modeled ILO estimate)
1991	76.714
1992	76.602
1993	76.153
1994	76.341
1995	76.522
1996	76.613
1997	76.706
1998	76.429
1999	76.082
2000	76.247
2001	75.822
2002	75.579
2003	75.038
2004	74.846
2005	74.545
2006	74.429
2007	74.357
2008	73.906
2009	73.51
2010	73.811
2011	74.909
2012	75.568
2013	76.009
2014	75.924
2015	75.806
2016	75.299
2017	75.209
2018	75.656
2019	76.143
2020	74.844
2021	75.43
2022	75.528
2023	75.253