Year	% (modeled ILO estimate)
1991	55.17
1992	55.284
1993	55.231
1994	55.259
1995	55.162
1996	55.324
1997	55.278
1998	55.258
1999	55.067
2000	54.514
2001	54.046
2002	53.48
2003	52.929
2004	52.246
2005	51.783
2006	51.168
2007	50.67
2008	50.14
2009	49.267
2010	48.687
2011	48.01
2012	47.7
2013	46.906
2014	46.836
2015	46.766
2016	46.876
2017	46.701
2018	46.61
2019	46.531
2020	45.196
2021	45.354
2022	46.503
2023	46.922