Year	% (modeled ILO estimate)
1991	69.801
1992	67.522
1993	66.255
1994	65.614
1995	64.625
1996	63.761
1997	63.362
1998	63.161
1999	64.999
2000	65.549
2001	65.713
2002	67.435
2003	67.851
2004	67.299
2005	65.761
2006	65.99
2007	67.202
2008	67.629
2009	65.199
2010	63.971
2011	64.388
2012	63.158
2013	63.655
2014	63.62
2015	63.904
2016	63.293
2017	63.679
2018	63.178
2019	63.917
2020	61.71
2021	63.616
2022	63.632
2023	63.979