Year	% of GDP
2006	39.945149739583336
2007	40.2070280441027
2008	35.905299117572206
2009	34.719238052085025
2010	36.395960365374854
2011	37.30023412537842
2012	35.8619152880322
2013	35.166840193750105
2014	36.13742890674334
2015	31.955043041898566
2016	32.44549059668993
2017	32.571477495941636
2018	36.888181115684844
2019	35.816791670622145
2020	26.325409046645238
2021	26.983825021254198