Year	% (modeled ILO estimate)
1991	49.2
1992	49.487
1993	49.06
1994	48.344
1995	47.842
1996	47.557
1997	47.381
1998	47.373
1999	47.561
2000	48.917
2001	49.147
2002	49.32
2003	49.841
2004	50.101
2005	49.888
2006	49.487
2007	49.574
2008	49.755
2009	49.408
2010	50.257
2011	51.127
2012	52.229
2013	52.79
2014	52.707
2015	53.453
2016	54.158
2017	52.304
2018	52.894
2019	55.104
2020	55.604
2021	57.484
2022	58.187
2023	58.517