Year	% (modeled ILO estimate)
1991	43.822
1992	44.438
1993	42.713
1994	42.749
1995	38.068
1996	40.172
1997	41.962
1998	44.239
1999	42.986
2000	42.121
2001	40.899
2002	38.284
2003	39.996
2004	42.051
2005	42.417
2006	43.551
2007	43.768
2008	43.374
2009	43.971
2010	43.299
2011	43.862
2012	43.804
2013	43.596
2014	43.448
2015	43.374
2016	43.207
2017	43.159
2018	43.972
2019	44.662
2020	40.744
2021	45.326
2022	46.493
2023	46.984