Year	% (modeled ILO estimate)
1991	62.419
1992	61.932
1993	60.991
1994	61.521
1995	61.462
1996	61.649
1997	60.936
1998	60.482
1999	59.579
2000	59.71
2001	59.143
2002	59.322
2003	59.758
2004	59.452
2005	59.699
2006	60.251
2007	60.251
2008	60.278
2009	58.773
2010	56.392
2011	51.957
2012	47.304
2013	45.371
2014	45.21
2015	45.917
2016	46.819
2017	48.021
2018	49.421
2019	50.257
2020	49.74
2021	50.736
2022	53.532
2023	54.218