Year	% (modeled ILO estimate)
1991	60.497
1992	58.331
1993	56.249
1994	54.931
1995	52.484
1996	50.398
1997	49.687
1998	50.016
1999	50.776
2000	50.425
2001	50.405
2002	50.022
2003	49.471
2004	47.467
2005	49.642
2006	50.458
2007	51.549
2008	52.166
2009	51.764
2010	51.282
2011	52.41
2012	50.698
2013	50.849
2014	49.918
2015	48.819
2016	49.218
2017	49.859
2018	50.274
2019	51.43
2020	51.837
2021	52.262
2022	53.594
2023	54.325