Year	% (modeled ILO estimate)
1991	59.316
1992	58.84
1993	59.021
1994	59.112
1995	59.303
1996	59.345
1997	59.291
1998	58.986
1999	58.031
2000	57.001
2001	56.019
2002	55.077
2003	54.128
2004	53.402
2005	52.651
2006	51.991
2007	51.135
2008	50.411
2009	49.627
2010	48.956
2011	47.945
2012	47.263
2013	49.232
2014	49.373
2015	49.334
2016	49.289
2017	47.078
2018	46.7
2019	46.31
2020	45.754
2021	45.652
2022	45.2
2023	45.238