Year	% (modeled ILO estimate)
1991	62.914
1992	63.847
1993	64.661
1994	65.529
1995	65.686
1996	65.464
1997	65.149
1998	65.106
1999	65.005
2000	64.813
2001	64.595
2002	64.577
2003	64.244
2004	63.883
2005	63.848
2006	63.639
2007	63.154
2008	62.66
2009	62.464
2010	62.449
2011	60.169
2012	55.856
2013	57.486
2014	53.29
2015	52.171
2016	51.92
2017	50.783
2018	52.555
2019	48.678
2020	51.151
2021	51.007
2022	50.504
2023	50.89