Year	% (modeled ILO estimate)
1991	66.449
1992	65.726
1993	64.75
1994	63.773
1995	62.584
1996	61.967
1997	61.098
1998	60.192
1999	59.085
2000	58.102
2001	57.173
2002	56.144
2003	55.112
2004	53.959
2005	52.979
2006	51.874
2007	50.843
2008	49.775
2009	48.434
2010	47.31
2011	46.104
2012	45.174
2013	43.87
2014	43.182
2015	42.404
2016	42.167
2017	41.559
2018	40.99
2019	40.466
2020	39.224
2021	38.856
2022	39.598
2023	39.932