Year	% (modeled ILO estimate)
1991	41.242
1992	42.76
1993	43.194
1994	42.965
1995	43.336
1996	42.874
1997	43.645
1998	43.35
1999	43.335
2000	41.651
2001	41.174
2002	40.474
2003	39.348
2004	38.238
2005	38.658
2006	36.692
2007	36.123
2008	37.848
2009	39.093
2010	40.256
2011	37.075
2012	36.25
2013	40.063
2014	41.616
2015	42.305
2016	41.696
2017	42.023
2018	46.687
2019	43.399
2020	40.893
2021	44.076
2022	44.968
2023	45.253