Year	% (modeled ILO estimate)
1991	49.26
1992	48.419
1993	45.451
1994	44.643
1995	44.121
1996	43.21
1997	43.066
1998	43.776
1999	45.617
2000	46.071
2001	46.043
2002	46.117
2003	46.816
2004	46.499
2005	46.554
2006	46.899
2007	46.727
2008	46.18
2009	44.957
2010	44.761
2011	45.008
2012	45.715
2013	46.615
2014	49.283
2015	50.785
2016	52.606
2017	53.711
2018	54.417
2019	54.927
2020	54.3
2021	56.91
2022	58.227
2023	58.468