Year	% (modeled ILO estimate)
1991	48.846
1992	48.505
1993	48.693
1994	48.81
1995	48.968
1996	48.955
1997	48.902
1998	48.656
1999	48.079
2000	47.443
2001	46.845
2002	46.28
2003	45.705
2004	45.296
2005	44.866
2006	44.506
2007	43.986
2008	43.57
2009	43.106
2010	42.734
2011	42.076
2012	41.68
2013	43.03
2014	43.432
2015	43.657
2016	43.873
2017	42.115
2018	42.033
2019	41.943
2020	41.346
2021	41.326
2022	40.844
2023	40.904