Year	% (modeled ILO estimate)
1991	61.989
1992	60.772
1993	60.841
1994	59.293
1995	59.66
1996	57.798
1997	57.745
1998	56.296
1999	55.498
2000	57.717
2001	56.235
2002	55.127
2003	54.006
2004	51.208
2005	50.834
2006	55.712
2007	56.68
2008	58.497
2009	59.229
2010	61.712
2011	62.333
2012	62.425
2013	63.347
2014	68.053
2015	69.519
2016	69.439
2017	68.041
2018	66.826
2019	69.186
2020	70.503
2021	73.878
2022	72.857
2023	71.938