Year	% (modeled ILO estimate)
1991	73.192
1992	72.818
1993	72.511
1994	72.156
1995	71.73
1996	71.324
1997	68.963
1998	68.741
1999	68.695
2000	67.326
2001	67.279
2002	67.429
2003	66.684
2004	65.959
2005	67.056
2006	68.115
2007	69.152
2008	69.752
2009	70.365
2010	70.809
2011	70.931
2012	71.098
2013	71.823
2014	71.883
2015	71.251
2016	70.734
2017	70.253
2018	69.752
2019	69.389
2020	66.252
2021	66.684
2022	67.581
2023	67.432