Year	% (modeled ILO estimate)
1991	58.584
1992	57.703
1993	49.753
1994	49.09
1995	46.371
1996	46.355
1997	46.896
1998	47.292
1999	48.668
2000	47.452
2001	45.747
2002	45.457
2003	47.535
2004	45.63
2005	46.261
2006	47.172
2007	47.764
2008	47.438
2009	46.26
2010	44.499
2011	45.799
2012	46.947
2013	47.241
2014	48.721
2015	49.776
2016	51.721
2017	52.522
2018	53.308
2019	53.901
2020	52.69
2021	53.194
2022	54.261
2023	53.476