Year	% (modeled ILO estimate)
1991	65.937
1992	64.361
1993	63.483
1994	63.477
1995	62.85
1996	62.197
1997	60.993
1998	60.188
1999	59.523
2000	59.096
2001	57.658
2002	56.1
2003	53.328
2004	53.649
2005	53.065
2006	53.692
2007	53.827
2008	54.029
2009	49.01
2010	49.003
2011	51.521
2012	51.181
2013	51.964
2014	52.246
2015	56.002
2016	56.912
2017	54.795
2018	56.277
2019	56.661
2020	50.179
2021	55.348
2022	56.071
2023	54.458