Year	% (modeled ILO estimate)
1991	81.174
1992	80.086
1993	78.97
1994	77.825
1995	76.647
1996	72.881
1997	73.883
1998	73.186
1999	72.949
2000	71.891
2001	70.871
2002	71.67
2003	71.072
2004	71.626
2005	72.829
2006	71.322
2007	70.542
2008	70.18
2009	69.448
2010	67.315
2011	65.111
2012	65.386
2013	64.15
2014	62.965
2015	62.599
2016	62.004
2017	62.443
2018	62.608
2019	63.102
2020	58.107
2021	60.798
2022	62.479
2023	60.251