Year	% of GDP
1996	18.689010451972948
1997	16.990365336503487
1998	16.812772072037085
1999	18.5840060645556
2000	16.512187115075434
2001	18.745389260279257
2002	17.67450477932638
2003	17.626185319352675
2004	18.8869059673282
2005	17.68669813715787
2006	17.719081747808254
2007	18.118821135894432
2008	19.56798738122395
2009	21.67130988714146
2010	18.23192538901482
2011	19.73477959007736
2012	20.97987700411428
2013	20.602120430310205
2014	19.683544385024803
2015	18.291043204013558
2016	16.76382131411135
2017	15.825819028683458
2018	15.92205793449684
2019	17.35745980598961
2020	18.471585144526177
2021	17.25207178422197
2022	17.931596288242467