Year	% (modeled ILO estimate)
1991	16.712650354558434
1992	16.71302791350201
1993	17.405820761780845
1994	17.83478732318005
1995	15.396887732560993
1996	16.66626107271488
1997	18.022532694142225
1998	18.515637344872435
1999	19.02715563810287
2000	19.549929676511955
2001	19.589552238805975
2002	19.629992856537477
2003	20.65000486712742
2004	21.71174146514501
2005	22.73274503233173
2006	23.823203306118337
2007	24.359136414197597
2008	25.169290188156673
2009	26.649190674946553
2010	28.011461318051573
2011	28.46236752290282
2012	28.66512690290556
2013	28.87114789054171
2014	29.51890918446103
2015	30.37793459945014
2016	29.29133659619557
2017	28.233963686624364
2018	27.20588235294118
2019	29.454742083951608
2020	29.70770660171258
2021	30.408473884152304
2022	30.123203792405313
2023	30.188865572151585