Year	% (modeled ILO estimate)
1991	54.004
1992	53.984
1993	53.889
1994	53.824
1995	53.676
1996	53.559
1997	53.47
1998	53.373
1999	53.139
2000	53.026
2001	51.799
2002	52.965
2003	54.978
2004	53.415
2005	53.101
2006	53.153
2007	52.719
2008	53.549
2009	53.599
2010	54.076
2011	53.434
2012	53.674
2013	54.716
2014	54.871
2015	55.244
2016	54.933
2017	55.172
2018	54.787
2019	55.28
2020	50.353
2021	48.232
2022	51.692
2023	52.808