Year	% (modeled ILO estimate)
1991	55.643
1992	56.166
1993	56.394
1994	55.844
1995	55.272
1996	54.688
1997	54.1
1998	53.519
1999	52.947
2000	52.374
2001	51.801
2002	51.233
2003	50.667
2004	50.102
2005	49.541
2006	48.987
2007	48.44
2008	47.889
2009	47.329
2010	46.77
2011	46.217
2012	45.664
2013	45.107
2014	44.55
2015	43.993
2016	43.436
2017	42.878
2018	42.318
2019	41.726
2020	41.333
2021	41.412
2022	43.606
2023	43.961