Year % of GDP 2005 5.853700030826856 2006 6.3138506305070035 2007 10.168902614051579 2008 9.604478154762397 2009 11.492027642659712 2010 15.838709599888542 2011 17.49559960068265 2012 18.063301387100715 2013 14.390433248043655 2014 13.38918106233707 2015 11.859344066446628 2016 13.450748922461287 2017 14.786498456036668 2018 17.107980538726885 2019 16.844159584182265 2020 20.556455457910236 2021 17.06263362836032 2022 15.03317696776956