Year	% (modeled ILO estimate)
1991	67.271
1992	51.353
1993	54.769
1994	57.757
1995	62.34
1996	62.03
1997	60.509
1998	58.14
1999	56.789
2000	57.691
2001	57.998
2002	58.239
2003	57.621
2004	56.775
2005	55.695
2006	54.557
2007	52.953
2008	53.462
2009	56.464
2010	55.658
2011	58.554
2012	55.59
2013	50.442
2014	50.578
2015	53.029
2016	54.431
2017	56.951
2018	58.867
2019	59.998
2020	56.242
2021	57.333
2022	59.846
2023	60.076