Year	% (modeled ILO estimate)
1991	41.447
1992	41.446
1993	41.272
1994	41.582
1995	41.948
1996	42.604
1997	42.623
1998	42.202
1999	42.296
2000	42.518
2001	42.075
2002	42.053
2003	42.088
2004	42.013
2005	42.022
2006	42.144
2007	42.15
2008	41.457
2009	41.971
2010	41.953
2011	43.691
2012	45.086
2013	47.589
2014	48.66
2015	48.936
2016	48.818
2017	49.209
2018	49.707
2019	50.204
2020	49.246
2021	50.117
2022	49.782
2023	49.63