Year	% (modeled ILO estimate)
1991	52.33018845555304
1992	52.28735171676774
1993	52.58152320265747
1994	53.695040070687185
1995	54.13025971763567
1996	54.49310112290644
1997	55.25964594158947
1998	55.61862376598939
1999	56.01182810010485
2000	56.34293750781551
2001	55.923465479240384
2002	55.344329951455926
2003	55.28854077938767
2004	55.22665067843067
2005	55.476287572735394
2006	55.85173018508365
2007	55.9393583629732
2008	55.64252295930586
2009	53.938675273031066
2010	53.170113655404194
2011	52.78537595141956
2012	52.88183320173298
2013	52.959451868469856
2014	53.29566304461789
2015	53.539482742302134
2016	53.85819052693213
2017	54.37495188239653
2018	54.7007203854967
2019	55.186428252802905
2020	51.34537139381784
2021	53.059409051603964
2022	54.36738857269084
2023	54.91563356183736
