Year	% (modeled ILO estimate)
1991	59.155
1992	58.553
1993	57.949
1994	57.345
1995	56.739
1996	56.131
1997	55.521
1998	54.909
1999	54.296
2000	53.681
2001	52.998
2002	52.313
2003	51.628
2004	50.942
2005	50.256
2006	49.569
2007	48.883
2008	48.197
2009	47.512
2010	46.828
2011	46.144
2012	45.462
2013	44.782
2014	44.104
2015	43.427
2016	43.17
2017	42.863
2018	42.524
2019	42.175
2020	41.469
2021	41.31
2022	41.113
2023	41.054