Year	% (modeled ILO estimate)
1991	61.979
1992	61.459
1993	61.083
1994	60.569
1995	60.086
1996	59.75
1997	59.345
1998	59.206
1999	58.763
2000	58.446
2001	58.177
2002	57.824
2003	57.475
2004	57.094
2005	56.636
2006	56.005
2007	55.47
2008	54.899
2009	54.343
2010	53.673
2011	52.605
2012	51.539
2013	50.465
2014	49.442
2015	48.462
2016	47.513
2017	46.587
2018	46.013
2019	45.519
2020	44.486
2021	44.092
2022	45.295
2023	45.397