Year % of total employment (modeled ILO estimate) 1991 27.37728599894547 1992 27.867868738113803 1993 28.782572281785605 1994 29.646434541561444 1995 30.64044378312621 1996 31.371260327621233 1997 31.866248235098894 1998 32.178148902199574 1999 32.3787216886849 2000 32.79508385672207 2001 33.34866581827234 2002 34.141603336377095 2003 34.82325479891159 2004 35.831338234516245 2005 36.50550153843309 2006 37.07487689994389 2007 37.324635265145936 2008 37.76129514030387 2009 38.28471641035268 2010 38.54960198210219 2011 39.24804135493076 2012 39.74005248509676 2013 40.93076487238407 2014 42.01704038674961 2015 43.062222296678755 2016 43.6083433792209 2017 44.11069460593198 2018 44.734312982130504 2019 45.28623096926522 2020 44.62240279602846 2021 44.67026044984238 2022 44.78431598948819