Year	% of GDP
1980	4.30769014358521
1993	4.947540044784545
1994	4.6672749519348145
1995	4.69021487236023
1996	4.624315023422239
1998	4.46187019348145
1999	4.56723022460938
2000	4.621950149536135
2001	4.69964981079102
2002	4.61520004272461
2003	4.6713850498199445
2004	4.782285213470455
2005	4.8967399597168
2006	4.833469867706301
2007	4.64346981048584
2008	4.726675033569335
2009	4.98976993560791
2010	5.10705995559692
2011	4.98425006866455
2012	4.8641350269317645
2013	4.84388017654419
2014	4.87471008300781
2015	4.88554000854492
2016	4.79266977310181
2017	4.68990993499756
2018	4.64929986000061
2019	4.6600551605224645
2020	4.86460518836975
2021	4.96000003814697