Year	% (modeled ILO estimate)
1991	61.921
1992	61.715
1993	60.981
1994	60.678
1995	60.819
1996	60.894
1997	59.763
1998	60.07
1999	59.817
2000	58.89
2001	60.48
2002	58.09
2003	57.07
2004	50.35
2005	51.33
2006	49.06
2007	50.46
2008	49.99
2009	48.3
2010	48.1
2011	47.96
2012	48.92
2013	50.26
2014	52.32
2015	49.42
2016	48.9
2017	51.15
2018	56.31
2019	55.02
2020	52.11
2021	46.81
2022	51.885
2023	53.086