Year	% (modeled ILO estimate)
1991	67.57
1992	64.253
1993	60.743
1994	64.356
1995	70.794
1996	69.155
1997	72.02
1998	66.481
1999	69.291
2000	69.76
2001	64.267
2002	64.181
2003	60.857
2004	63.166
2005	63.937
2006	64.991
2007	66.592
2008	63.904
2009	58.11
2010	52.598
2011	51.91
2012	50.869
2013	48.028
2014	48.811
2015	50.457
2016	50.16
2017	51.928
2018	52.39
2019	54.248
2020	52.559
2021	54.354
2022	56.061
2023	55.908