Year	% (modeled ILO estimate)
1991	49.733
1992	48.977
1993	48.139
1994	47.392
1995	45.912
1996	44.774
1997	43.508
1998	43.931
1999	44.038
2000	43.959
2001	44.244
2002	44.422
2003	44.571
2004	44.922
2005	44.718
2006	44.443
2007	44.243
2008	44.05
2009	44.225
2010	44.587
2011	44.965
2012	45.728
2013	46.36
2014	47.003
2015	46.654
2016	46.359
2017	45.841
2018	45.138
2019	44.248
2020	42.564
2021	41.489
2022	41.531
2023	41.857