Year	% (modeled ILO estimate)
1991	34.784
1992	34.767
1993	34.701
1994	34.658
1995	34.652
1996	34.671
1997	34.636
1998	34.499
1999	34.57
2000	34.468
2001	34.415
2002	34.422
2003	34.365
2004	34.307
2005	34.253
2006	36.813
2007	39.369
2008	40.373
2009	39.512
2010	39.203
2011	39.109
2012	40.127
2013	40.293
2014	43.204
2015	44.3
2016	44.854
2017	45.879
2018	47.502
2019	48.732
2020	43.811
2021	45.506
2022	47.693
2023	48.334