Year	% (modeled ILO estimate)
1991	55.662
1992	56.694
1993	57.747
1994	58.523
1995	58.109
1996	57.637
1997	57.144
1998	56.627
1999	56.189
2000	55.724
2001	55.287
2002	54.851
2003	54.425
2004	54.911
2005	55.46
2006	56.06
2007	55.769
2008	55.489
2009	55.166
2010	54.868
2011	54.58
2012	54.316
2013	54.017
2014	53.691
2015	53.396
2016	53.144
2017	52.86
2018	52.56
2019	52.64
2020	51.822
2021	51.886
2022	52.57
2023	52.82