Year	% (modeled ILO estimate)
1991	49.765
1992	49.893
1993	50.853
1994	51.973
1995	55.559
1996	55.71
1997	56.038
1998	57.158
1999	57.714
2000	55.753
2001	57.031
2002	58.928
2003	60.159
2004	61.756
2005	62.852
2006	67.634
2007	68.004
2008	68.308
2009	68.626
2010	69.102
2011	67.887
2012	68.175
2013	65.583
2014	64.129
2015	60.99
2016	59.885
2017	61.057
2018	61.2
2019	61.984
2020	53.85
2021	56.133
2022	55.541
2023	54.824