Year	% (modeled ILO estimate)
1991	50.232
1992	50.566
1993	50.652
1994	49.846
1995	49.903
1996	49.952
1997	51.431
1998	50.3
1999	51.686
2000	53.106
2001	54.36
2002	53.996
2003	54.017
2004	54.087
2005	54.113
2006	55.252
2007	56.006
2008	56.426
2009	56.547
2010	56.709
2011	56.918
2012	57.167
2013	57.4
2014	58.258
2015	59.029
2016	59.753
2017	59.804
2018	58.747
2019	57.748
2020	54.854
2021	55.539
2022	57.715
2023	58.375