Year	% of GDP
1970	0.6066228359613826
1971	0.6349047987343251
1972	0.5899084864458967
1973	0.3328032170174161
1974	0.4954159167150361
1975	0.43796066640411346
1976	0.3926696168333158
1977	0.2870354421618292
1978	0.29056461209097145
1979	0.28417492757414975
1980	0.329405449766272
1981	0.4473373220589453
1982	0.42995176463712037
1983	0.4334927726129257
1984	0.2845750406074695
1985	0.3089729615845276
1986	0.4401501519879152
1987	0.5784374276746911
1988	0.5860164748420589
1989	0.518322360236018
1990	0.7031778522645675
1991	0.5079947192867904
1992	0.6448806207711018
1993	0.9066993842577254
1994	0.9787286567200403
1995	1.0683529144004027
1996	1.1650684448415265
1997	1.4126049777136194
1998	1.4182207471867028
1999	1.6767405513518403
2000	2.093425713137165
2001	1.6392574983707955
2002	1.42945580373584
2003	1.4579072659957755
2004	2.0387305856760127
2005	1.8182269253654406
2006	2.6155340747488625
2007	3.2157246731976015
2008	2.726290455673875
2009	1.9689622346202085
2010	2.9155370629660062
2011	2.83509090487204
2012	2.442497384319412
2013	2.763825043251053
2014	2.8606742300796006
2015	2.80935536513455
2016	2.3256720590657363
2017	2.3086681947725505
2018	2.2694130765497684
2019	1.970371450540007
2020	2.1838293305897083
2021	2.613931802768891
2022	2.2975817596210195