Year	% (modeled ILO estimate)
1991	37.579
1992	38.32
1993	39.044
1994	39.75
1995	40.44
1996	41.127
1997	41.81
1998	42.483
1999	43.148
2000	43.817
2001	44.498
2002	43.789
2003	43.102
2004	42.439
2005	41.796
2006	41.172
2007	40.565
2008	39.972
2009	39.391
2010	38.818
2011	38.248
2012	37.874
2013	37.491
2014	37.107
2015	36.718
2016	36.325
2017	35.935
2018	35.678
2019	31.914
2020	31.537
2021	31.676
2022	31.934
2023	31.768