Year	% (modeled ILO estimate)
1991	54.865
1992	54.745
1993	54.73
1994	54.691
1995	54.814
1996	54.78
1997	54.706
1998	54.52
1999	54.456
2000	54.375
2001	54.347
2002	54.33
2003	54.235
2004	54.717
2005	55.123
2006	54.811
2007	54.477
2008	54.174
2009	53.729
2010	53.712
2011	53.774
2012	53.737
2013	55.373
2014	55.075
2015	54.855
2016	54.645
2017	54.351
2018	53.78
2019	53.125
2020	52.338
2021	52.581
2022	52.462
2023	52.442