Year	% (modeled ILO estimate)
1991	47.193
1992	46.764
1993	46.515
1994	47.662
1995	49.242
1996	49.348
1997	49.243
1998	49.695
1999	50.046
2000	51.195
2001	51.496
2002	51.844
2003	52.581
2004	52.603
2005	53.998
2006	54.7
2007	55.306
2008	55.864
2009	55.577
2010	55.476
2011	55.753
2012	55.644
2013	55.406
2014	55.043
2015	55.517
2016	55.913
2017	56.457
2018	57.286
2019	57.844
2020	56.368
2021	58.146
2022	59.108
2023	59.351