Year	% of GDP
1972	11.15354874991213
1973	10.475277260145099
1974	11.57495256166983
1975	13.21180621419629
1976	14.461610745674644
1977	14.133629978342766
1978	14.554055934325866
1979	14.745866805751442
1980	14.66327334607087
1981	14.652766872425499
1982	14.696281503876998
1983	14.801682136189577
1984	13.89466773039764
1985	13.499421874804977
1986	13.238718347578015
1987	13.456282693688792
1988	13.374458113890435
1989	12.835807572656027
1990	13.419181256924492
1991	12.535822379558653
1992	12.73074084963364
1993	12.499789803519434
1994	12.687741581461578
1995	12.99209499190826
1996	13.234365058717422
1997	12.901802171136701
1998	12.62021874656213
1999	12.791890310810833
2000	14.261778076786616
2001	13.54878841698263
2002	13.248666789934466
2003	13.69345757226538
2004	12.966827829534436
2005	13.313070435798172
2006	13.727535211512713
2007	14.817382703341831
2008	14.495199990643004
2009	13.650964447851852
2010	13.43693029364941
2011	13.850967631941892
2012	14.077591497435545
2013	13.630623437561528
2014	13.241161663255571
2015	13.158144339891594
2016	13.981952981677004
2017	14.493818534162697
2018	15.536383732767318
2019	15.19956653144568
2020	14.861257673633613
2021	16.73473394025267
2022	18.444579670363584