Year	% (modeled ILO estimate)
1991	46.594
1992	47.043
1993	47.519
1994	48.023
1995	48.558
1996	47.464
1997	47.932
1998	48.402
1999	49.557
2000	49.837
2001	50.075
2002	52.257
2003	51.968
2004	53.352
2005	55.085
2006	53.764
2007	53.966
2008	53.317
2009	53.046
2010	51.218
2011	49.399
2012	48.541
2013	47.493
2014	47
2015	47.046
2016	48.099
2017	49.428
2018	49.477
2019	50.791
2020	44.564
2021	48.677
2022	50.11
2023	48.55