Year	% (modeled ILO estimate)
1991	51.007140302861536
1992	50.88377961812154
1993	51.365053713926045
1994	51.67542486478942
1995	52.7499459809624
1996	52.620398609211094
1997	52.75419825002636
1998	52.80686030567559
1999	52.8737469019448
2000	53.352285598836474
2001	53.580502215307696
2002	53.200415248271256
2003	53.16854015204889
2004	53.70015159974541
2005	53.99843196904985
2006	54.57379278791945
2007	54.8972441815942
2008	54.950849485060075
2009	53.99955446540145
2010	54.051753228623625
2011	53.958175586027515
2012	53.957113504794165
2013	53.845513747155735
2014	53.916264754218325
2015	54.44188189930509
2016	54.7548216242073
2017	54.96891865949862
2018	54.69789458224414
2019	53.65051427763765
2020	50.32892056572081
2021	51.31118223156963
2022	53.02459720850606
2023	53.74351530023741