Year	% of GDP
2002	35.74266611522634
2003	34.2150975638051
2004	35.84382034807832
2005	34.82658277576602
2006	35.30874005851413
2007	35.05470407952411
2008	36.163404053243575
2009	37.98486229189189
2010	37.397970133897104
2011	40.162464768994624
2012	44.297405799039225
2013	41.76403329905063
2014	43.697272145238095
2015	43.04932868293251
2016	42.391188668470924
2017	40.83559058728207
2018	41.14933748596785
2019	41.65015607444313
2020	39.658325472917404
2021	40.328570459776294