Year	% of GDP
1970	1.55550003051758
1979	4.91503000259399
1981	4.32848978042603
1984	3.9690101146698
1987	3.47160005569458
1992	4.17620992660522
1996	3.24700999259949
1998	2.93192005157471
1999	3.08017992973328
2000	2.88529992103577
2001	2.7720799446106
2002	2.56633996963501
2003	2.44759011268616
2004	2.28831005096436
2005	2.3252100944519
2006	2.52774000167847
2007	2.5833899974823
2008	2.41757988929749
2009	2.84629011154175
2010	3.0144100189209
2011	3.17111992835999
2012	3.47275996208191
2013	3.25525999069214
2014	3.52083992958069
2015	3.75931000709534
2016	3.68649005889893
2017	3.7605299949646
2018	4.09168004989624
2019	4.2020001411438
2020	4.09100008010864
2021	4.23099994659424
2022	3.79800009727478