Year	% (modeled ILO estimate)
1991	70.672
1992	69.32
1993	71.034
1994	69.159
1995	70.492
1996	66.693
1997	67.288
1998	68.561
1999	64.962
2000	64.73
2001	64.861
2002	63.166
2003	64.745
2004	61.832
2005	60.853
2006	61.131
2007	63.308
2008	59.576
2009	57.684
2010	54.852
2011	52.806
2012	57.12
2013	54.869
2014	57.317
2015	53.483
2016	51.745
2017	51.938
2018	55.142
2019	51.66
2020	50.069
2021	49.594
2022	48.398
2023	44.325