Year	% (modeled ILO estimate)
1991	66.968
1992	66.917
1993	67.008
1994	67.068
1995	67.319
1996	67.373
1997	67.376
1998	67.234
1999	67.239
2000	67.215
2001	67.259
2002	67.314
2003	67.282
2004	67.955
2005	68.544
2006	68.336
2007	68.095
2008	67.882
2009	67.504
2010	67.519
2011	67.639
2012	67.65
2013	68.822
2014	68.479
2015	68.245
2016	68.016
2017	67.693
2018	67.752
2019	67.807
2020	66.676
2021	67.412
2022	67.867
2023	67.941