Year	% (modeled ILO estimate)
1991	47.054
1992	44.736
1993	40.262
1994	43.365
1995	41.459
1996	42.37
1997	40.696
1998	39.848
1999	39.912
2000	37.191
2001	35.372
2002	33.128
2003	30.641
2004	30.133
2005	30.357
2006	30.412
2007	30.322
2008	30.422
2009	29.067
2010	30.125
2011	32.165
2012	31.632
2013	32.394
2014	33.666
2015	34.203
2016	34.24
2017	34.528
2018	35.134
2019	33.297
2020	29.358
2021	32.356
2022	35.404
2023	36.165