Year	% (modeled ILO estimate)
1991	73.995
1992	73.04
1993	71.593
1994	70.27
1995	69.083
1996	67.849
1997	66.62
1998	65.517
1999	64.398
2000	63.276
2001	61.578
2002	60.041
2003	58.652
2004	57.835
2005	56.843
2006	55.981
2007	55.071
2008	53.741
2009	52.55
2010	51.746
2011	50.696
2012	49.804
2013	48.932
2014	48.082
2015	47.283
2016	46.654
2017	46.034
2018	45.733
2019	44.608
2020	40.922
2021	42.704
2022	41.227
2023	40.637