Year	% (modeled ILO estimate)
1991	60.837
1992	60.854
1993	61.042
1994	60.461
1995	60.598
1996	60.579
1997	60.296
1998	60.352
1999	60.497
2000	60.142
2001	60.7
2002	61.451
2003	61.304
2004	61.185
2005	60.939
2006	60.4
2007	60.359
2008	60.067
2009	60.019
2010	60.152
2011	60.122
2012	60.301
2013	60.531
2014	60.506
2015	60.726
2016	60.535
2017	60.183
2018	60.132
2019	60.042
2020	59.454
2021	59.351
2022	60.431
2023	60.876