Year	% (modeled ILO estimate)
1991	22.163
1992	22.396
1993	22.748
1994	22.967
1995	23.331
1996	23.61
1997	23.881
1998	24.086
1999	24.347
2000	24.637
2001	24.513
2002	24.421
2003	24.484
2004	24.478
2005	24.486
2006	24.532
2007	24.384
2008	24.209
2009	23.925
2010	23.913
2011	23.903
2012	23.896
2013	23.781
2014	23.629
2015	23.485
2016	23.301
2017	23.166
2018	22.708
2019	22.308
2020	21.864
2021	21.858
2022	22.123
2023	22.345