Year	% of total labor force
1991	41.60822127649988
1992	41.788818687158056
1993	41.89326816539319
1994	42.3073827271447
1995	42.719196721441094
1996	42.91009520641569
1997	43.04488405584354
1998	43.1995707577183
1999	43.379243486188145
2000	43.848341019263046
2001	44.181018698747714
2002	44.28991069265625
2003	44.663879562430424
2004	44.556100092558346
2005	44.90251339566408
2006	45.05960607279104
2007	45.156379049185254
2008	45.2579182063383
2009	45.415528248925064
2010	45.333402830387556
2011	45.51376139121697
2012	45.63848403832577
2013	45.74610646516879
2014	45.93372800871936
2015	46.12321034152498
2016	46.4397564283043
2017	46.64230850040141
2018	46.83105023380014
2019	46.949338518897896
2020	46.99239368570003
2021	47.16996151296576
2022	47.02760095481558
2023	46.99914091136216