Year	% (modeled ILO estimate)
1991	61.258
1992	61.711
1993	58.839
1994	59.178
1995	58.106
1996	55.557
1997	54.006
1998	54.178
1999	54.918
2000	52.546
2001	51.397
2002	51.76
2003	50.645
2004	49.61
2005	50.596
2006	51.121
2007	52.779
2008	53.499
2009	52.1
2010	51.686
2011	52.674
2012	52.586
2013	52.095
2014	51.075
2015	50.329
2016	50.184
2017	49.458
2018	50.471
2019	50.608
2020	49.821
2021	48.982
2022	50.748
2023	53.099