Year	% (modeled ILO estimate)
1991	62.147
1992	62.066
1993	62.147
1994	61.694
1995	62.446
1996	63.003
1997	63.827
1998	64.225
1999	64.591
2000	64.734
2001	64.922
2002	65.048
2003	65.134
2004	65.29
2005	65.317
2006	64.052
2007	62.848
2008	61.634
2009	60.393
2010	59.039
2011	57.667
2012	56.739
2013	55.875
2014	55.04
2015	54.197
2016	53.294
2017	52.398
2018	53.961
2019	55.418
2020	56.512
2021	56.7
2022	57.636
2023	57.639