Year	% (modeled ILO estimate)
1991	41.67108193962301
1992	41.531207330248904
1993	41.20888303135048
1994	40.7393539943899
1995	40.34431386980671
1996	39.98952969525766
1997	39.7119409685585
1998	39.343867831411686
1999	38.9470234078947
2000	38.6945381202981
2001	38.52289750144474
2002	38.22216770959057
2003	37.97382028543266
2004	37.82049133357808
2005	37.76149701850973
2006	37.39448826568436
2007	37.028269728495125
2008	36.56277212565855
2009	35.987645837813446
2010	35.38707160908705
2011	35.075340995051015
2012	34.125221160046394
2013	33.44426995312774
2014	33.032185300698096
2015	32.88802958343594
2016	32.42684667592281
2017	31.729932435515465
2018	31.34015199191042
2019	30.85760293229801
2020	29.662203333784976
2021	29.67819070312454
2022	29.878831218978785
2023	30.02628159872632