Year	% (modeled ILO estimate)
1991	56.516
1992	53.688
1993	53.938
1994	53.126
1995	61.834
1996	58.703
1997	62.75
1998	69.708
1999	72.188
2000	77.98
2001	76.913
2002	68.261
2003	67.49
2004	70.327
2005	73.505
2006	74.422
2007	74.788
2008	73.811
2009	66.677
2010	65.596
2011	66.729
2012	68.667
2013	75.219
2014	73.618
2015	76.563
2016	78.323
2017	76.794
2018	76.583
2019	76.184
2020	68.744
2021	68.113
2022	74.736
2023	75.16