Year	% (modeled ILO estimate)
1991	30.192
1992	31.64
1993	32.448
1994	32.396
1995	34.029
1996	33.103
1997	33.913
1998	34.337
1999	33.123
2000	33.015
2001	32.363
2002	32.162
2003	33.271
2004	34.136
2005	35.228
2006	36.459
2007	37.659
2008	38.84
2009	38.654
2010	40.992
2011	43.327
2012	43.892
2013	44.479
2014	45.111
2015	44.98
2016	44.697
2017	45.093
2018	45.366
2019	45.495
2020	40.381
2021	42.146
2022	45.63
2023	46.854