Year	% (modeled ILO estimate)
1991	62.107
1992	61.125
1993	58.01
1994	60.737
1995	60.311
1996	57.759
1997	54.962
1998	58.797
1999	56.585
2000	55.017
2001	54.53
2002	53.133
2003	55.179
2004	54.025
2005	54.233
2006	54.945
2007	55.737
2008	54.525
2009	51.087
2010	52.101
2011	52.715
2012	52.731
2013	51.868
2014	50.249
2015	50.574
2016	50.322
2017	51.352
2018	50.375
2019	52.413
2020	48.371
2021	51.824
2022	52.833
2023	53.21