Year	% of GDP
1961	2.8713577240086297
1962	3.6396335718390045
1963	1.7405375152079212
1964	3.3305827170586633
1965	3.5738533476736842
1966	3.146177371409878
1967	3.1644101323544818
1968	3.81626448314636
1969	4.0166774226968185
1970	3.9286870859879905
1971	3.6019529125512246
1972	4.154446154242934
1973	4.5757775131052085
1974	4.764308058962016
1975	5.873963823634639
1976	5.73621111787084
1977	5.34789166043816
1978	5.599569997407818
1979	6.239254523184562
1980	7.113311767704788
1981	6.476930680427498
1982	7.508949584439767
1983	7.484882907081278
1984	8.027921231638391
1985	7.304764231148253
1986	6.413498254339508
1987	4.924302721425918
1988	4.868263868895612
1990	5.280754134805283
1991	5.393497297711642
1992	5.0031056581328945
1993	4.886198212950232
1994	5.199813127381583
1995	3.318711766692106
1996	2.886041816947413
1997	2.8984880149234766
1998	3.6328095804092997
1999	4.15637564904854
2000	3.4384417844395663
2001	3.5495749804148526
2002	3.49593269313462
2003	3.1519630953483655
2004	3.3900033195391703
2005	2.759121179101506
2006	2.807892642512493
2007	2.936264849121483
2008	3.0160724474744187
2009	3.0547189607883487
2010	2.578763072296591
2012	1.890809092424403
2013	1.991170643414263
2014	1.8127153028767529
2015	1.6462478447131674
2016	1.2800390348099793
2017	1.3675867571704603
2018	1.1801759416005324
2019	1.2432768569115313
2020	1.3529309668040022
2021	1.317000164481919
2022	1.424176909084371