Year	% (modeled ILO estimate)
1991	64.064
1992	63.616
1993	60.859
1994	59.578
1995	59.147
1996	57.216
1997	56.033
1998	56.717
1999	55.398
2000	55.273
2001	55.084
2002	54.845
2003	54.596
2004	54.391
2005	54.246
2006	54.187
2007	54.27
2008	54.037
2009	54.557
2010	54.575
2011	54.481
2012	54.347
2013	54.262
2014	54.165
2015	54.069
2016	53.979
2017	53.807
2018	53.592
2019	55.218
2020	54.556
2021	56.445
2022	56.548
2023	56.16