Year	% (modeled ILO estimate)
1991	55.602
1992	54.41
1993	53.247
1994	52.372
1995	50.651
1996	49.504
1997	48.073
1998	48.86
1999	49.166
2000	49.282
2001	49.912
2002	50.286
2003	50.547
2004	51.226
2005	50.992
2006	50.661
2007	50.454
2008	50.129
2009	50.555
2010	51.277
2011	51.947
2012	53.03
2013	53.804
2014	54.566
2015	54.148
2016	53.765
2017	53.12
2018	52.22
2019	50.971
2020	48.364
2021	46.317
2022	46.382
2023	47.254