Year	% (modeled ILO estimate)
1991	51.307
1992	51.501
1993	51.387
1994	51.259
1995	50.986
1996	50.71
1997	50.647
1998	50.339
1999	50.104
2000	49.911
2001	49.686
2002	49.422
2003	48.97
2004	48.601
2005	49.133
2006	49.663
2007	50.163
2008	50.703
2009	51.239
2010	51.82
2011	52.356
2012	52.89
2013	53.438
2014	53.937
2015	53.658
2016	53.436
2017	53.219
2018	52.984
2019	52.662
2020	51.688
2021	51.81
2022	52.383
2023	52.466