Year	% (modeled ILO estimate)
1991	65.334
1992	62.874
1993	60.448
1994	57.978
1995	57.534
1996	57.147
1997	57.107
1998	56.681
1999	57.248
2000	57.508
2001	56.682
2002	54.4
2003	52.297
2004	53.412
2005	54.403
2006	55.512
2007	57.278
2008	58.959
2009	60.24
2010	56.352
2011	56.447
2012	56.782
2013	56.833
2014	56.83
2015	56.73
2016	56.633
2017	56.584
2018	56.816
2019	56.686
2020	54.51
2021	55.224
2022	54.616
2023	54.55