Year	% (modeled ILO estimate)
1991	57.811
1992	57.694
1993	57.58
1994	57.192
1995	57.044
1996	57.031
1997	57.722
1998	62.345
1999	63.26
2000	64.156
2001	64.259
2002	64.36
2003	64.458
2004	64.763
2005	64.508
2006	67.31
2007	61.923
2008	61.961
2009	58.086
2010	55.434
2011	52.909
2012	54.255
2013	51.256
2014	51.511
2015	52.734
2016	54.064
2017	54.721
2018	53.634
2019	53.071
2020	48.592
2021	56.443
2022	54.888
2023	55.058