Year	% of GDP
1972	2.19806763285024
1973	3.76415462709879
1974	4.53145622525297
1975	4.286064168503549
1976	3.48156353853458
1977	3.7459201606829002
1978	3.62107985774329
1979	3.80043383947939
1980	4.6961086286929
1981	6.255461279021341
1982	6.44930689376515
1983	5.38198403648803
1984	4.57564575645756
1985	4.30422064354367
1986	4.12128017967434
1987	3.03942220884743
1988	3.1566469093988103
1989	3.52912674143328
1990	3.52740166449266
1991	2.3947121927080603
1992	2.84951481234276
1993	2.79239845208779
1994	2.57770556975008
1995	2.71463667452926
1996	2.80593839042227
1997	2.39972074691363
1998	2.2581336824168003
1999	2.3944609705068
2000	2.43597728787045
2001	2.50257766217716
2002	2.53014006008996
2003	2.23754532184395
2004	2.0407280132366
2005	2.00038586601038
2006	2.00617807800672
2007	1.7771670882850699
2008	1.86952468832085
2009	1.8226133795888702
2010	1.8758078577761899
2011	1.71974893241654
2012	1.8036698252490098
2013	1.8165513018447401
2014	1.80742945563682
2015	1.82058813645626
2016	1.7245651146227399
2017	1.8136166913062302
2018	1.97127204651996
2019	1.88538746667702
2020	2.0358383557640503
2021	2.1013086823994698
2022	1.89979653202748