Year	% (modeled ILO estimate)
1991	78.468
1992	76.569
1993	75.28
1994	74.461
1995	73.397
1996	74.986
1997	76.421
1998	77.767
1999	76.901
2000	75.058
2001	72.973
2002	72.036
2003	71.068
2004	71.54
2005	71.892
2006	72.147
2007	70.304
2008	67.164
2009	68.467
2010	67.808
2011	67.464
2012	57.516
2013	55.171
2014	55.216
2015	55.623
2016	55.951
2017	56.148
2018	56.276
2019	56.383
2020	52.951
2021	53.344
2022	56.156
2023	56.717