Year % of total employment (modeled ILO estimate) 1991 37.43555869688812 1992 37.53115672910001 1993 37.715187795897556 1994 37.38503289682958 1995 37.050916067307114 1996 36.49270327909502 1997 36.52474928155307 1998 36.261346495286595 1999 36.51054532549372 2000 36.00228088441587 2001 36.11068192994025 2002 36.38365706457347 2003 36.350535857040605 2004 35.71351715007346 2005 35.01629407040504 2006 34.351607217423684 2007 33.43619146252363 2008 33.05037703971432 2009 33.46563478351504 2010 33.38466217872613 2011 33.24609336454965 2012 32.05465868848874 2013 31.913456485817097 2014 31.65678009534983 2015 32.04778817026581 2016 32.38614677878549 2017 32.69345934894131 2018 33.020320565012234 2019 33.10158763622138 2020 33.809444775243286 2021 34.35338684756808 2022 33.14487397003128