Year	% (modeled ILO estimate)
1991	37.96070435072173
1992	37.534751539415076
1993	35.745779302892196
1994	37.52423874219215
1995	37.08223925423702
1996	36.94183390272935
1997	36.10705347289112
1998	35.77991041153614
1999	36.13300682579277
2000	34.2246596044766
2001	33.97791272510378
2002	33.97307617192945
2003	33.10054431670727
2004	32.01286836834538
2005	31.83149881116478
2006	31.354620894525983
2007	30.7939275512673
2008	30.746312146266778
2009	30.96881223522342
2010	31.11989837926931
2011	30.70516046534307
2012	29.931152737038644
2013	30.156322060387662
2014	30.27205660875526
2015	31.005168997105994
2016	31.139736892777695
2017	31.261671995295092
2018	31.19154898824575
2019	31.79238905638104
2020	29.08396338124819
2021	30.059393400193095
2022	30.815926203965798
2023	30.943675132368686