Year	% (modeled ILO estimate)
1991	58.007
1992	58.555
1993	57.674
1994	56.771
1995	56.69
1996	54.969
1997	54.678
1998	53.109
1999	52.972
2000	53.5
2001	53.997
2002	54.496
2003	54.971
2004	55.235
2005	55.505
2006	55.714
2007	55.809
2008	55.433
2009	55.034
2010	54.693
2011	54.783
2012	54.664
2013	54.5
2014	54.225
2015	54.023
2016	53.916
2017	53.499
2018	53.648
2019	53.768
2020	52.678
2021	52.775
2022	53.626
2023	53.714