Year	% (modeled ILO estimate)
1991	52.9330194730753
1992	52.21736493583686
1993	51.14582985446561
1994	50.28205111542955
1995	49.26521395972474
1996	48.40315990338599
1997	47.672784320179254
1998	46.874142398322
1999	46.19078579639688
2000	45.466011682867254
2001	44.86881986168952
2002	44.250502374642444
2003	43.69976565016519
2004	43.43617287164436
2005	42.86672249224983
2006	42.37410032894855
2007	41.76135963352444
2008	40.95329053044437
2009	40.00843699062958
2010	39.261490022838856
2011	38.39749956455252
2012	37.57958137731872
2013	36.84764711945033
2014	36.105752946804394
2015	35.277999192333986
2016	34.53846913508484
2017	33.9503879331439
2018	33.45758244857757
2019	33.27874858965967
2020	31.212647997611608
2021	32.06509743829387
2022	32.614142925902144
2023	32.97543058685356