Year	% (modeled ILO estimate)
1991	41.699
1992	41.73
1993	41.679
1994	41.48
1995	41.118
1996	41.145
1997	40.972
1998	40.651
1999	40.313
2000	39.983
2001	39.609
2002	39.21
2003	38.789
2004	38.342
2005	37.886
2006	37.615
2007	37.318
2008	37.017
2009	36.735
2010	36.481
2011	36.391
2012	36.265
2013	36.12
2014	35.957
2015	35.774
2016	35.656
2017	35.489
2018	35.269
2019	34.993
2020	34.66
2021	34.556
2022	35.01
2023	35.028