Year	% (modeled ILO estimate)
1991	39.108
1992	39.837
1993	41.852
1994	44.5
1995	46.148
1996	46.489
1997	45.82
1998	45.576
1999	46.415
2000	47.499
2001	47.271
2002	46.495
2003	46.686
2004	47.134
2005	48.844
2006	49.497
2007	50.636
2008	51.773
2009	51.877
2010	52.894
2011	53.148
2012	55.241
2013	55.509
2014	56.636
2015	56.899
2016	57.464
2017	57.708
2018	58.472
2019	58.271
2020	57.035
2021	56.863
2022	58.908
2023	58.893