Year	% (modeled ILO estimate)
1991	61.157
1992	60.595
1993	60.025
1994	59.54
1995	59.02
1996	58.483
1997	57.686
1998	55.968
1999	53.985
2000	51.847
2001	51.629
2002	51.409
2003	51.297
2004	52.212
2005	50.797
2006	50.786
2007	56.153
2008	56.952
2009	55.418
2010	53.079
2011	51.619
2012	49.505
2013	47.494
2014	49.164
2015	49.92
2016	50.51
2017	52.001
2018	52.972
2019	53.977
2020	53.582
2021	54.023
2022	54.625
2023	54.496