Year	% (modeled ILO estimate)
1991	63.802
1992	63.697
1993	68.873
1994	68.848
1995	68.041
1996	65.822
1997	65.036
1998	63.052
1999	61.327
2000	61.919
2001	60.532
2002	56.35
2003	55.229
2004	56.203
2005	57.771
2006	58.31
2007	58.296
2008	56.973
2009	54.29
2010	54.375
2011	52.462
2012	54.782
2013	55.375
2014	55.08
2015	54.096
2016	53.129
2017	52.675
2018	50.805
2019	49.116
2020	45.089
2021	45.866
2022	47.415
2023	47.915