Year	% of GDP
1997	23.47791573048972
1998	25.17838127726681
1999	27.036449027235363
2000	21.8926628587607
2001	36.28660549455185
2002	36.2690472130266
2003	37.31767233120356
2004	42.702229367493956
2005	45.75035180486366
2006	49.367783056149946
2007	53.012614165275984
2008	48.74459036584566
2009	51.24939330461022
2010	53.7242906558004
2011	54.96254738769335
2012	56.857949225331396
2013	60.09834297633863
2014	63.120451897956286
2015	64.45866874625678
2016	66.73546620277708
2017	69.5421258679798
2018	71.27228967110439
2019	73.58609156884393
2020	81.34473098205923
2021	80.50915608364
2022	72.86604151770297
2023	73.1203730051371