Year	% (modeled ILO estimate)
1991	44.77
1992	44.765
1993	45.232
1994	45.701
1995	46.248
1996	46.304
1997	46.372
1998	46.314
1999	46.499
2000	46.617
2001	46.762
2002	46.928
2003	47.071
2004	47.396
2005	47.695
2006	48.07
2007	48.266
2008	48.579
2009	48.835
2010	49.198
2011	49.227
2012	49.571
2013	51.095
2014	52.143
2015	52.965
2016	53.772
2017	53.33
2018	53.95
2019	54.57
2020	53.93
2021	54.659
2022	54.586
2023	54.746