Year	% (modeled ILO estimate)
1991	63.946
1992	63.628
1993	63.309
1994	62.989
1995	62.668
1996	60.237
1997	60.979
1998	60.869
1999	61.33
2000	60.942
2001	60.552
2002	62.042
2003	61.602
2004	62.572
2005	64.042
2006	62.632
2007	62.342
2008	61.842
2009	61.342
2010	59.362
2011	57.352
2012	57.07
2013	55.93
2014	55.09
2015	54.93
2016	55.15
2017	56.03
2018	56.14
2019	57.04
2020	51.44
2021	54.831
2022	56.39
2023	54.493