Year	% (modeled ILO estimate)
1991	20.09954146903217
1992	20.02749568864914
1993	20.02017921406647
1994	20.07139279890137
1995	19.89158322037957
1996	20.06649207735476
1997	20.230612485065418
1998	20.328542224736527
1999	20.00844636235816
2000	19.719028148155186
2001	19.752153610389094
2002	19.797163476938422
2003	19.650769055190786
2004	19.373446682172798
2005	19.08481055580712
2006	18.631472224690178
2007	18.07399282819842
2008	17.582416424334824
2009	17.18944609100476
2010	16.87712721385277
2011	16.139752882950624
2012	15.462174853105171
2013	15.098318365375476
2014	14.757786645553399
2015	14.268404287020351
2016	13.812740349279991
2017	13.407458497392412
2018	12.74606824214639
2019	12.774216977818629
2020	12.080091016442623
2021	12.435153645220225
2022	12.926256986172625
2023	14.541739157831717