Year	% (modeled ILO estimate)
1991	71.5
1992	70.708
1993	69.848
1994	68.904
1995	67.886
1996	67.16
1997	66.394
1998	65.59
1999	64.742
2000	63.421
2001	62.079
2002	60.718
2003	59.341
2004	57.949
2005	56.545
2006	55.131
2007	53.709
2008	52.281
2009	50.849
2010	49.416
2011	47.985
2012	46.556
2013	45.133
2014	44.636
2015	44.056
2016	43.798
2017	43.44
2018	43.051
2019	42.686
2020	42.28
2021	41.8
2022	41.672
2023	41.641