Year	% (modeled ILO estimate)
1991	40.329
1992	40.003
1993	40.409
1994	41.782
1995	42.422
1996	42.931
1997	43.029
1998	43.132
1999	43.288
2000	43.435
2001	43.794
2002	43.985
2003	44.367
2004	44.247
2005	44.644
2006	44.76
2007	44.695
2008	44.626
2009	45.166
2010	45.952
2011	46.359
2012	46.787
2013	47.015
2014	46.756
2015	47.26
2016	46.583
2017	46.534
2018	46.132
2019	45.718
2020	42.141
2021	43.226
2022	44.598
2023	44.838