Year	% (modeled ILO estimate)
1991	77.373
1992	76.429
1993	75.457
1994	74.459
1995	73.433
1996	72.381
1997	71.302
1998	70.198
1999	69.07
2000	67.918
2001	66.923
2002	65.912
2003	64.886
2004	63.848
2005	62.797
2006	61.734
2007	60.661
2008	59.577
2009	58.483
2010	57.381
2011	56.317
2012	55.441
2013	54.573
2014	53.743
2015	52.955
2016	52.192
2017	51.418
2018	50.652
2019	49.967
2020	46.884
2021	48.757
2022	48.417
2023	48.32