Year	% (modeled ILO estimate)
1991	56.435
1992	56.868
1993	57.342
1994	56.736
1995	55.221
1996	56.253
1997	58.253
1998	58.276
1999	58.214
2000	58.066
2001	57.469
2002	56.787
2003	56.87
2004	57.136
2005	58.089
2006	58.813
2007	58.819
2008	58.395
2009	57.401
2010	57.269
2011	57.434
2012	58.252
2013	58.054
2014	57.587
2015	58.006
2016	58.163
2017	58.207
2018	58.506
2019	59.038
2020	53.977
2021	57.486
2022	59.013
2023	59.782