Year	% (modeled ILO estimate)
1991	25.154
1992	25.033
1993	24.873
1994	24.969
1995	25.244
1996	25.596
1997	25.89
1998	26.15
1999	26.562
2000	26.974
2001	27.384
2002	27.791
2003	28.196
2004	28.599
2005	28.981
2006	29.343
2007	29.701
2008	30.058
2009	30.416
2010	30.775
2011	31.138
2012	31.506
2013	31.876
2014	32.249
2015	32.158
2016	31.997
2017	31.786
2018	30.791
2019	29.748
2020	29.095
2021	29.095
2022	28.991
2023	29.09