Year	% of GDP
1970	0.100744901932934
1971	0.3257494290197799
1972	0.15210174103140425
1973	0.1577854724540281
1974	0.10179172733802831
1975	0.15077268982931655
1976	0.07116739276826335
1977	0.21762563839499258
1978	0.050475579088097536
1979	0.13680280875738537
1980	0.15490086975884002
1981	0.32450943221131784
1982	0.2248992820635722
1983	0.45673347506981377
1984	0.42956667038861923
1985	0.3849188222319785
1986	0.38304687593112274
1987	0.25902609032362933
1988	0.5262246734168654
1989	0.23052073037028412
1990	0.6303477703068603
1991	0.6108543193531605
1992	0.32486116371580875
1993	0.678609285822154
1994	0.47732354125791254
1995	0.5960383145052172
1996	0.6634274088184856
1997	0.8375968506004768
1998	0.9806648890171977
1999	0.02095592235112029
2000	0.5661611448792847
2001	1.4014687844819442
2002	0.9010740692372976
2003	0.13592700246140044
2004	0.7922895695465324
2005	2.8143552869534405
2006	3.0243356145248566
2007	5.421951121073403
2008	2.8108498250966716
2009	0.8349896487005968
2010	1.438503986607344
2011	2.2602535898675384
2012	0.32567728253927974
2013	0.9466100409597777
2014	0.947093887745634
2015	0.839812877629666
2016	0.7277099796276203
2017	0.6022113766482863
2018	1.8478592131290765
2019	1.8616980259059173
2020	0.24971391887087316
2021	2.545949827484838
2022	2.264133560805626