Year	% of GDP
1970	7.858146695527346
1971	7.859117089573073
1972	7.859257227209353
1973	7.858366289096468
1974	7.8551110165473
1975	7.858879779841395
1976	7.863967188555964
1977	7.859962856598162
1978	7.85391317389637
1979	7.838831486293748
1980	7.877726073954874
1981	7.8894015441546435
1982	7.839940921986302
1983	7.823667114449704
1984	7.763423316182654
1985	8.07219686772335
1986	7.947778301849015
1987	7.5926388559231475
1988	7.74229686730443
1989	7.462205306558404
1990	7.135125209293228
1991	7.82271309489683
1992	8.923775615717313
1993	8.954687174638245
1994	10.733610428748058
1995	11.447506403135751
1996	17.652136213669824
1997	18.310797238912965
1998	16.899456127608428
1999	16.614715083460748
2000	16.422817957559854
2001	16.069489685124864
2002	15.35553207007934
2003	14.234064599511994
2004	13.77614323482449
2005	13.88952599412134
2006	13.421926784319377
2007	14.510297096268337
2008	14.662296505460784
2009	14.980670103092782
2010	15.630829498818555
2011	15.339904333961444
2012	16.103143243871425
2013	15.733395551407684
2014	15.087513529664836
2015	14.9087370083367
2016	13.85020631502251
2017	13.500477324227035
2018	12.812908021026448
2019	12.479260854936207
2020	11.196924504293362
2021	10.535053966496697
2022	10.734347864043812