Year	% (modeled ILO estimate)
1991	11.892
1992	11.933
1993	12.13
1994	11.967
1995	12.378
1996	12.792
1997	13.345
1998	13.753
1999	14.084
2000	14.403
2001	14.767
2002	14.972
2003	15.059
2004	15.079
2005	15.062
2006	15.186
2007	15.339
2008	15.422
2009	15.413
2010	15.281
2011	15.231
2012	14.982
2013	14.708
2014	14.456
2015	14.385
2016	14.216
2017	13.979
2018	13.728
2019	13.524
2020	13.044
2021	13.093
2022	13.398
2023	13.48