Year	% (modeled ILO estimate)
1991	42.26
1992	42.274
1993	42.228
1994	42.175
1995	42.15
1996	42.154
1997	42.114
1998	41.959
1999	42.102
2000	41.985
2001	41.934
2002	41.939
2003	41.876
2004	41.79
2005	41.704
2006	43.77
2007	45.837
2008	46.773
2009	45.879
2010	45.398
2011	44.93
2012	45.991
2013	45.493
2014	48.964
2015	49.52
2016	50.61
2017	52.767
2018	54.614
2019	55.805
2020	50.129
2021	51.213
2022	53.926
2023	54.679