Year	% of total labor force
1991	40.98132373948468
1992	41.23914662331984
1993	41.310314721478406
1994	41.402455614279845
1995	41.45451675550963
1996	41.54780076275507
1997	41.81127417465251
1998	41.87396419697118
1999	41.88236023820527
2000	41.90655578638716
2001	41.885791680024056
2002	41.85129152673757
2003	42.035391053923746
2004	42.221661969126586
2005	42.41814815253481
2006	42.636838488302416
2007	42.8841946962155
2008	43.15763682127663
2009	42.07159175036301
2010	42.66484608331923
2011	44.060236131742414
2012	43.079638291707276
2013	41.853022134631985
2014	41.19511826193566
2015	42.50292163446436
2016	43.57696468924677
2017	42.874308711344284
2018	43.39270421437942
2019	43.942236030045976
2020	43.83834565453374
2021	44.31028483839723
2022	44.14922466550221
2023	44.255748718684046