Year	% (modeled ILO estimate)
1991	57.38914929152523
1992	59.286304580493955
1993	59.37932531820772
1994	59.3829236394694
1995	59.559162593378225
1996	63.098512188250446
1997	62.74238227146816
1998	62.396869050137504
1999	62.12971438426129
2000	62.4826510515115
2001	62.40009590792839
2002	63.653015656545385
2003	65.8144180621288
2004	67.5525995018284
2005	69.64442085710495
2006	71.12756872164398
2007	68.79878089180414
2008	70.49998661706059
2009	68.71983267188672
2010	68.7240241359789
2011	67.60245644817645
2012	71.10500167466786
2013	70.91474867539458
2014	71.48679854213617
2015	69.88969758519521
2016	71.89454676778621
2017	72.08300360502946
2018	72.29631173161074
2019	72.53200719500582
2020	73.24345508700424
2021	74.10782808902533
2022	71.55992092132927
2023	71.91860282820683
