Year	% (modeled ILO estimate)
1991	48.169
1992	46.73
1993	46.982
1994	47.234
1995	47.486
1996	47.738
1997	47.99
1998	44.44
1999	46.106
2000	47.78
2001	44.425
2002	41.12
2003	33.08
2004	33.5
2005	37.72
2006	39.18
2007	45.03
2008	47.22
2009	49.855
2010	47.818
2011	48.318
2012	45.227
2013	47
2014	46.1
2015	44.736
2016	41.682
2017	42.001
2018	42.724
2019	42.997
2020	40.74
2021	41.555
2022	42.997
2023	42.009