Year	% (modeled ILO estimate)
1991	66.012
1992	65.971
1993	65.843
1994	65.67
1995	65.423
1996	65.558
1997	65.623
1998	65.818
1999	65.879
2000	65.908
2001	66.282
2002	66.121
2003	65.91
2004	65.377
2005	65.141
2006	66.421
2007	67.501
2008	68.403
2009	69.15
2010	69.902
2011	70.632
2012	65.513
2013	63.658
2014	61.692
2015	61.585
2016	61.576
2017	61.487
2018	61.347
2019	61.155
2020	60.514
2021	60.439
2022	59.564
2023	59.772