Year	% of total labor force
1991	45.61368168202146
1992	45.59272472561668
1993	45.57424468464448
1994	45.55552110990991
1995	45.53513555237195
1996	45.51442222284485
1997	45.49175996942987
1998	45.47147402413714
1999	45.449626019474174
2000	45.42342813263883
2001	45.32514979497891
2002	45.225814752508825
2003	45.12201803107905
2004	45.01413620210959
2005	44.900695686002074
2006	44.78758669958206
2007	44.67731307589282
2008	44.56660576379119
2009	44.454605923112105
2010	44.34107411457309
2011	44.4012484372179
2012	44.46305204443634
2013	44.534452298373296
2014	44.6125870286124
2015	44.69396625211661
2016	44.78101432925
2017	44.88366167003291
2018	44.99400301577843
2019	45.09495539283038
2020	45.049454937631616
2021	45.367502668539586
2022	45.181471236969614
2023	45.126124297596064