Year	% (modeled ILO estimate)
1991	51.329
1992	52.358
1993	52.438
1994	52.83
1995	52.363
1996	51.404
1997	52.149
1998	51.363
1999	50.247
2000	50.276
2001	50.341
2002	50.639
2003	50.768
2004	50.801
2005	50.422
2006	50.183
2007	49.972
2008	49.65
2009	49.707
2010	49.345
2011	48.907
2012	48.631
2013	48.41
2014	48.211
2015	48.109
2016	48.021
2017	47.936
2018	47.864
2019	47.8
2020	46.332
2021	46.244
2022	47.802
2023	48.107