Year	% of total labor force
1991	49.28779952914788
1992	49.08282331712412
1993	48.84371291038076
1994	48.57080666429142
1995	48.268449948051135
1996	47.955780412573766
1997	47.61583112631254
1998	47.195479159838065
1999	46.70913559752597
2000	46.20144408078485
2001	45.667103040231694
2002	45.10360926488504
2003	44.522065642214834
2004	43.92672321148091
2005	43.329345283950495
2006	42.74295983870097
2007	42.89225988206896
2008	43.10659410032665
2009	43.35862239800814
2010	43.639872570993674
2011	43.94674636695192
2012	44.26812801402893
2013	44.624705891762524
2014	45.0156383535655
2015	45.0234305230672
2016	45.0229789655702
2017	45.02663693063183
2018	45.051295317654336
2019	45.09507149557251
2020	45.061732222517605
2021	45.19708276949545
2022	45.06986390821447
2023	45.02294378315522