Year	% (modeled ILO estimate)
1991	50.282
1992	48.58
1993	47.749
1994	46.918
1995	46.09
1996	45.264
1997	44.44
1998	41.64
1999	38.731
2000	35.9
2001	35.045
2002	34.2
2003	27.96
2004	29.97
2005	32.8
2006	37.02
2007	43.53
2008	44.96
2009	45.909
2010	45.573
2011	45.909
2012	45.109
2013	44
2014	43.727
2015	41.873
2016	43.209
2017	44.673
2018	45.837
2019	45.576
2020	43.56
2021	44.233
2022	35.931
2023	37.382