Year	% (modeled ILO estimate)
1991	54.057
1992	53.916
1993	53.339
1994	53.337
1995	53.809
1996	54.262
1997	54.677
1998	55.209
1999	55.761
2000	56.09
2001	56.839
2002	57.199
2003	57.28
2004	57.052
2005	56.928
2006	56.714
2007	56.545
2008	56.78
2009	56.24
2010	55.813
2011	55.173
2012	54.646
2013	54.254
2014	54.316
2015	54.579
2016	54.791
2017	54.98
2018	55.144
2019	55.11
2020	54.056
2021	54.108
2022	54.472
2023	54.444