Year	% (modeled ILO estimate)
1991	53.404
1992	53.312
1993	53.135
1994	52.753
1995	52.604
1996	52.571
1997	53.179
1998	57.598
1999	58.196
2000	58.881
2001	59.571
2002	58.714
2003	57.637
2004	58.903
2005	60.225
2006	62.918
2007	57.903
2008	57.131
2009	53.359
2010	51.247
2011	49.032
2012	50.3
2013	47.758
2014	47.632
2015	48.919
2016	49.727
2017	51.094
2018	50.168
2019	49.43
2020	44.36
2021	52.485
2022	51.212
2023	51.656