Year	% (modeled ILO estimate)
1991	72.668
1992	72.178
1993	71.744
1994	71.523
1995	70.972
1996	70.408
1997	69.618
1998	68.969
1999	68.357
2000	67.782
2001	66.89
2002	66.097
2003	65.216
2004	64.747
2005	64.141
2006	63.586
2007	63.059
2008	62.429
2009	61.618
2010	63.027
2011	62.352
2012	61.75
2013	61.09
2014	60.381
2015	59.725
2016	59.135
2017	58.526
2018	54.622
2019	56.334
2020	52.166
2021	52.633
2022	56.327
2023	56.723