Year	% (modeled ILO estimate)
1991	56.871
1992	56.535
1993	55.71
1994	55.287
1995	55.251
1996	55.166
1997	53.912
1998	54.066
1999	53.655
2000	52.37
2001	52.885
2002	51.055
2003	49.471
2004	45.078
2005	44.952
2006	44.805
2007	46.759
2008	46.551
2009	44.042
2010	44.176
2011	45
2012	44.583
2013	46.716
2014	46.735
2015	45.652
2016	46.27
2017	47.36
2018	50.915
2019	50.701
2020	48.076
2021	42.964
2022	47.051
2023	49.562