Year	% (modeled ILO estimate)
1991	41.203675303751275
1992	39.25112089832907
1993	36.207422085736184
1994	34.44960774219676
1995	33.68066295995122
1996	32.714847359034174
1997	32.68118097511509
1998	33.87998600234807
1999	34.96984924339161
2000	35.988344907857645
2001	36.50595606179938
2002	36.45392118801844
2003	36.041700696236035
2004	35.46263625228505
2005	35.036193213222056
2006	35.6128498417734
2007	36.54980359417882
2008	36.40997254241343
2009	33.76170110288041
2010	32.64054294975833
2011	32.22604672115096
2012	30.908659489265048
2013	30.615169938614784
2014	30.228572749096447
2015	30.453946474530305
2016	31.01172343936808
2017	31.919685489815652
2018	32.836738929030545
2019	33.42687195807546
2020	31.604926649674752
2021	32.93619727448736
2022	35.07167828068932
2023	36.24298107651883