Year	% (modeled ILO estimate)
1991	57.944
1992	57.489
1993	56.55
1994	55.992
1995	55.802
1996	55.606
1997	54.198
1998	54.233
1999	53.685
2000	52
2001	54.032
2002	52.174
2003	52.892
2004	48.697
2005	46.713
2006	47.479
2007	48.907
2008	48.025
2009	45.752
2010	45.85
2011	48.023
2012	47.155
2013	48.251
2014	46.168
2015	46.635
2016	48.892
2017	48.499
2018	49.506
2019	50.76
2020	48.232
2021	42.247
2022	45.345
2023	48.305