Year	% (modeled ILO estimate)
1991	17.801
1992	17.938
1993	17.82
1994	17.606
1995	17.318
1996	16.997
1997	16.815
1998	16.449
1999	16.084
2000	15.749
2001	15.39
2002	15.003
2003	14.543
2004	14.167
2005	14.312
2006	14.459
2007	14.592
2008	14.745
2009	14.894
2010	15.061
2011	15.201
2012	15.334
2013	15.466
2014	15.569
2015	15.336
2016	15.166
2017	14.973
2018	14.747
2019	14.472
2020	14.142
2021	14.09
2022	14.039
2023	13.877