Year	% (modeled ILO estimate)
1991	62.088
1992	62.616
1993	63.22
1994	63.784
1995	64.515
1996	64.199
1997	63.544
1998	62.779
1999	62.008
2000	61.38
2001	59.495
2002	57.932
2003	56.496
2004	55.354
2005	54.146
2006	54.213
2007	54.284
2008	54.526
2009	54.577
2010	54.655
2011	55.528
2012	56.325
2013	56.987
2014	57.545
2015	57.88
2016	57.617
2017	57.571
2018	57.745
2019	57.478
2020	55.466
2021	55.281
2022	57.295
2023	57.474