Year	% (modeled ILO estimate)
1991	55.736
1992	55.521
1993	54.815
1994	54.533
1995	54.662
1996	54.698
1997	53.608
1998	53.888
1999	53.623
2000	52.765
2001	51.657
2002	49.862
2003	45.839
2004	41.253
2005	43.094
2006	41.979
2007	44.488
2008	44.993
2009	42.237
2010	42.406
2011	41.789
2012	41.827
2013	45.055
2014	47.353
2015	44.572
2016	43.359
2017	46.082
2018	52.509
2019	50.634
2020	47.898
2021	43.777
2022	48.962
2023	50.948