Year	% (modeled ILO estimate)
1991	60.047
1992	59.404
1993	58.614
1994	57.635
1995	56.442
1996	55.51
1997	54.395
1998	53.226
1999	52.17
2000	51.311
2001	50.781
2002	50.38
2003	50.24
2004	50.296
2005	50.547
2006	50.198
2007	49.873
2008	49.649
2009	49.467
2010	49.358
2011	49.386
2012	49.507
2013	49.632
2014	49.632
2015	49.42
2016	49.017
2017	48.464
2018	47.765
2019	46.97
2020	46.1
2021	45.927
2022	46.95
2023	47.3