Year % of total employment (modeled ILO estimate) 1991 38.44968936739624 1992 38.16722256312781 1993 37.97678847166481 1994 37.31495581875398 1995 37.06122556565742 1996 36.665968129341415 1997 36.482061325626525 1998 36.13576409374293 1999 35.58717365641376 2000 35.4786560464296 2001 34.86930644524557 2002 35.146835140811405 2003 35.322611331005426 2004 35.766884065628446 2005 35.24560040480841 2006 34.272709024527586 2007 34.82135987617292 2008 33.49522128064854 2009 33.34329249094296 2010 32.37371807297549 2011 32.334150960277164 2012 31.759998322622707 2013 33.00203895499862 2014 32.604652484480475 2015 32.43967554538043 2016 31.0058218769735 2017 31.02986412094956 2018 31.02456410561988 2019 31.029072921472626 2020 30.663256642671758 2021 31.673058121518608 2022 31.544201264435596