Year % of total labor force 1991 48.803316029509716 1992 48.839167385271274 1993 48.59990857940365 1994 48.356022655586735 1995 48.099688887707075 1996 47.82503619066547 1997 47.526742207127434 1998 47.21676605092004 1999 46.88376057448486 2000 46.52317201145953 2001 47.27297066581665 2002 47.37274614345422 2003 46.889459860270506 2004 46.97899627465795 2005 46.6806362017486 2006 47.17915114564711 2007 47.08747353036539 2008 46.83041864224432 2009 46.700559865357825 2010 46.61839337496491 2011 46.81397460639552 2012 46.90540395490898 2013 46.88294272614283 2014 46.72066704031535 2015 46.7202902911401 2016 46.48075032085606 2017 46.52154475942943 2018 46.253688110878464 2019 46.18112175780166 2020 46.02071830461125 2021 46.12722107006621 2022 46.472562041244316 2023 46.43966639991466