Year	% (modeled ILO estimate)
1991	44.766
1992	41.4
1993	41.267
1994	42.125
1995	42.826
1996	41.988
1997	44.911
1998	50.352
1999	53.923
2000	54.462
2001	52.437
2002	51.398
2003	52.203
2004	50.775
2005	56.599
2006	57.1
2007	59.132
2008	55.633
2009	47.744
2010	40.881
2011	38.162
2012	37.139
2013	37.138
2014	36.727
2015	37.306
2016	41.738
2017	39.766
2018	39.354
2019	41.025
2020	36.518
2021	42.788
2022	47.497
2023	48.929