Year	% (modeled ILO estimate)
1991	48.511167940438085
1992	48.68858446845388
1993	47.10410788925356
1994	46.14412227322976
1995	44.75082809519182
1996	43.01717574221163
1997	40.82002506315785
1998	40.46554786187037
1999	39.25284211308605
2000	39.20212455416343
2001	39.192980490483755
2002	37.13591654403075
2003	35.25667750013984
2004	34.67784353328271
2005	33.35175550422249
2006	32.57475692407402
2007	31.994692389427076
2008	31.99320447533315
2009	32.14312683643229
2010	32.36391161330424
2011	31.355744305109717
2012	31.622689654742672
2013	31.58516757050026
2014	32.10976581701038
2015	32.18727772898135
2016	32.37869899863393
2017	33.073864937577476
2018	32.66067871907596
2019	32.417392934197416
2020	30.449273121081866
2021	29.354708963758984
2022	29.462552895598836
2023	29.70449777454906