Year	% (modeled ILO estimate)
1991	38.452382084497295
1992	37.59263615793713
1993	37.04489399962374
1994	37.001446092093275
1995	36.57744255281525
1996	35.98378916425547
1997	35.072693858621975
1998	34.956495352825115
1999	34.34074048317204
2000	34.14397199841798
2001	33.6046539660343
2002	32.992951562799554
2003	33.147390139110264
2004	32.98671119866263
2005	32.90984015960299
2006	33.17551071549722
2007	33.1243955438009
2008	33.077961421896504
2009	31.702993827516195
2010	31.17175480473256
2011	30.93477736976426
2012	30.565636615944975
2013	30.21111189838109
2014	30.526587028445032
2015	30.99842472970706
2016	30.99749476921158
2017	31.104994060349952
2018	31.484545555068454
2019	31.30642880719151
2020	28.91552177149863
2021	29.017778867469858
2022	29.98815356737554
2023	30.610954835985524