Year	% (modeled ILO estimate)
1991	45.332
1992	45.684
1993	46.043
1994	46.569
1995	47.272
1996	47.527
1997	47.776
1998	47.544
1999	47.238
2000	47.043
2001	47.09
2002	47.347
2003	47.306
2004	47.373
2005	47.361
2006	47.561
2007	47.595
2008	47.651
2009	47.605
2010	47.628
2011	47.582
2012	47.672
2013	47.662
2014	47.668
2015	47.709
2016	47.794
2017	47.785
2018	47.995
2019	45.584
2020	49.325
2021	43.329
2022	45.594
2023	46.004