Year % of total employment 1995 40.74 1996 40.75 1997 38.6 1998 48.91 1999 50.25 2000 57.6 2001 56.64 2002 52.22 2003 54.49 2004 52.04 2005 45.31 2006 45.94 2007 47.16 2008 47.27 2009 49.11 2010 48.12 2011 46.92 2012 47.52 2013 48.71 2014 46.89 2015 47.62 2016 46.55 2017 47.67 2018 47.98 2019 48.75 2020 49.76 2021 48.5 2022 48.63 2023 49.7