Year	% (modeled ILO estimate)
1991	60.428
1992	61.005
1993	60.553
1994	60.656
1995	62.069
1996	61.171
1997	63.133
1998	66.165
1999	67.757
2000	72.206
2001	73.614
2002	73.968
2003	73.609
2004	72.038
2005	67.351
2006	67.217
2007	69.604
2008	70.341
2009	70.052
2010	68.283
2011	68.114
2012	69.234
2013	69.221
2014	67.369
2015	68.489
2016	68.219
2017	68.369
2018	68.886
2019	70.023
2020	68.755
2021	69.702
2022	69.348
2023	71.408