Year	% (modeled ILO estimate)
1991	41.19057385975315
1992	40.21501917854846
1993	38.47937475877555
1994	38.68246151995369
1995	37.143627393394915
1996	36.20311005982905
1997	35.470303435818444
1998	34.439138663696184
1999	34.279581391383566
2000	33.55983972255591
2001	33.07527979691204
2002	32.44669780834065
2003	31.92590250999931
2004	31.600746318284074
2005	31.94601335042408
2006	32.131431332095154
2007	32.1763275193797
2008	32.22431499591796
2009	31.39768038580604
2010	31.592550230517293
2011	32.31879750142653
2012	31.83193994375042
2013	31.983195576885077
2014	32.018359977409624
2015	32.394145056489364
2016	32.483456299443354
2017	32.77047589183867
2018	33.09249457835521
2019	32.609780866791084
2020	30.01571276594919
2021	31.122744737963114
2022	33.4802554220109
2023	33.905578976148576