Year	% (modeled ILO estimate)
1991	61.847
1992	61.402
1993	61.176
1994	60.695
1995	60.474
1996	60.092
1997	59.691
1998	59.169
1999	58.743
2000	58.359
2001	58.051
2002	57.807
2003	57.816
2004	57.71
2005	57.626
2006	57.6
2007	57.255
2008	56.867
2009	56.301
2010	56.186
2011	56.078
2012	55.977
2013	55.209
2014	54.372
2015	53.549
2016	52.653
2017	51.853
2018	52.123
2019	52.458
2020	51.56
2021	51.023
2022	52.37
2023	52.532