Year	% of total labor force
1991	38.883188105377286
1992	38.689244213995416
1993	38.66322899304958
1994	38.845989946880124
1995	39.10099651261823
1996	39.407517433231355
1997	39.89733707719186
1998	38.89479794042695
1999	39.3775150182688
2000	40.21714546792513
2001	40.54962551170308
2002	40.561131781677354
2003	40.222317062003256
2004	40.73072436101389
2005	40.91414196272904
2006	41.14897777558194
2007	41.143693454349844
2008	41.22490679588683
2009	41.01403354262151
2010	41.137436790785245
2011	41.130980982174634
2012	41.108478641325824
2013	41.17018085237792
2014	41.38266184628954
2015	41.53913642419187
2016	41.674620551974265
2017	41.91712411136163
2018	42.104931648236764
2019	42.464042191504255
2020	42.46407833729218
2021	42.717007700825135
2022	43.02717289386913
2023	43.47652634354597