Year % of total employment 2001 22.05 2006 16.59 2007 14.82 2008 14.23 2009 14.57 2010 14.11 2011 13.8 2012 14.07 2013 12.6 2014 12.21 2015 14.76 2016 10.33 2017 13.2 2018 12.64 2019 11.77 2020 11.6 2021 5.37 2022 5.55 2023 5.94