Year	% of GDP
1970	0.008455397301349326
1971	0.02683150161447996
1972	0.00032259320007784045
1973	0.006931698774080561
1974	0.00140860892861163
1975	0.0687747333509215
1976	0.4580959341347731
1977	0.7275814773331942
1978	2.1480724692318
1979	6.749429233386358
1980	2.530170919996705
1981	3.3997500591454144
1982	1.061542573657564
1983	1.5823684233131579
1984	2.146356601639258
1985	3.0152774032937604
1986	2.951091026886942
1987	2.342602496532594
1988	3.4019318181818177
1989	3.1446131759149987
1990	1.7078141962421713
1991	0.6766906666666666
1992	1.0966173256649894
1993	1.0584252577319588
1994	2.4201325714285713
1995	0.994028431372549
1996	0.9404149956408021
1997	1.1353758931929296
1998	1.268437021572721
1999	1.1743928153446033
2000	1.2369972067039108
2001	0.5273847226094229
2002	0.7597532330430193
2003	0.29568383233532936
2004	1.590836183803833
2005	5.999509006499536
2006	9.348567265662941
2007	8.876336063372719
2008	5.831412618648799
2009	3.548351180195739
2010	2.9160165755014087
2011	-0.2045428488075268
2012	1.0023407177404908
2013	1.4534342076972695
2014	1.5092504225352112
2015	2.1025812840132576
2016	2.4385627814276227
2017	2.983015509176947
2018	3.100400775791865
2019	2.8273294496068617
2020	1.5246294899717194
2021	1.2061786105566477
2022	2.391180809690787