Year	% (modeled ILO estimate)
1991	62.369
1992	62.304
1993	61.924
1994	61.686
1995	61.374
1996	61.406
1997	61.365
1998	61.261
1999	61.047
2000	60.933
2001	61.018
2002	61.248
2003	61.282
2004	61.324
2005	61.2
2006	61.304
2007	61.349
2008	61.412
2009	61.483
2010	61.531
2011	61.592
2012	61.157
2013	60.759
2014	61.034
2015	61.264
2016	61.359
2017	61.486
2018	61.705
2019	62.027
2020	61.464
2021	62.518
2022	64.163
2023	64.354