Year	% of GDP
1970	2.4603053426714983
1971	2.3665313033428763
1972	2.3108963580171396
1973	3.051871208261222
1974	2.3335935764218427
1975	2.6683083838421258
1976	2.1373958286908
1977	3.2171772167602017
1978	3.1253857629780586
1979	2.521201813880647
1980	2.464425390538046
1981	1.4699421343890884
1982	2.073447183306371
1983	1.8383701645381685
1984	1.8307451669730235
1985	1.4635526038450695
1986	2.404776156685641
1987	2.1805045023299017
1988	2.4140119596974596
1989	2.527818623178026
1990	1.952834068993199
1991	3.730066051596583
1992	5.337057656998549
1993	5.173112623292105
1994	6.081795035815187
1995	6.694958130397386
1996	5.772468106613623
1997	4.932855149724544
1998	4.920099186080086
1999	3.49635616796934
2000	3.1137649476031566
2001	3.150829686568756
2002	3.2764957843147475
2003	4.594948876620415
2004	3.1642278694928376
2005	2.7436353882426507
2006	2.2413660783537943
2007	2.629062706894372
2008	2.5461795496236026
2009	2.7809006896656103
2010	2.1681414118930515
2011	2.2113672684105103
2012	2.3188379456054284
2013	2.276010355185756
2014	2.3612892928485216
2015	2.8643384460180803
2016	3.358087566887313
2017	3.219354578257725
2018	2.1778139008454125
2019	1.9690615567322545
2020	2.3028399313647463
2021	2.2357854626150697