Year	% (modeled ILO estimate)
1991	67.359
1992	68.422
1993	69.511
1994	67.715
1995	65.012
1996	65.437
1997	66.655
1998	67.233
1999	67.156
2000	64.581
2001	62.947
2002	59.458
2003	58.775
2004	58.421
2005	58.6
2006	58.967
2007	58.52
2008	57.813
2009	55.059
2010	55.493
2011	55.063
2012	55.388
2013	54.582
2014	53.702
2015	53.37
2016	53.118
2017	53.14
2018	52.94
2019	53.472
2020	47.217
2021	51.765
2022	52.776
2023	52.738