Year	% of GDP
1990	15.012839869578556
1991	16.40349924810394
1992	17.550699653704214
1993	18.198906478915085
1994	17.433298060468662
1995	17.82297948736887
1996	17.719663282782943
1997	17.649315424509222
1998	17.63860683668487
1999	17.799285232679605
2000	18.460687837271724
2001	18.827686336794418
2002	18.655237261299657
2003	18.773559797078725
2004	18.82531641867659
2005	18.908221573566934
2006	18.653302803423706
2007	17.454051291666268
2008	18.160288045324833
2009	20.15774021555746
2010	20.41953740451831
2011	20.562936469565244
2012	20.355398541681975
2013	19.64083940309647
2014	18.888010434738618
2015	18.823142550335252
2016	19.035560400647654
2017	18.45268058267147
2018	18.246900636166565
2019	18.307704078359226
2020	20.60970363602686
2021	20.748308051047267
2022	19.476964210848394
2023	19.489451966218574