Year	% of GDP
1975	19.227119261583304
1976	27.008434089428597
1977	24.009774931005815
1978	22.884583391411088
1979	23.53333827783134
1980	20.839882121807467
1981	23.427041499330656
1982	19.2439128577531
1983	16.94690265486726
1984	13.805832410483573
1985	13.114638447971782
1986	13.610664953421136
1987	13.614352392065342
1988	14.901261656609984
1989	16.265179677819084
1990	14.929577464788732
1991	13.378444881889765
1992	7.031170158405724
1993	9.5855421686747
1994	11.076958631846544
1995	12.096882709127607
1996	12.111905763567522
1997	15.414925373134327
1998	18.91634309918814
1999	19.513222166077142
2000	18.10753391076973
2001	15.626125388770667
2002	17.402221149203285
2003	18.264527184919768
2004	19.23646392800116
2005	18.91870663699437
2006	21.271898427329525
2007	18.967990060327953
2008	18.27575566385711
2009	16.94808639257872
2010	15.863364928264598
2011	17.038303805800666
2012	16.136162867678966
2013	16.465607504684133
2014	16.479657044283552
2015	16.838837521767406
2016	16.333041325238703
2017	15.56208713530189
2018	14.176300963515482
2019	14.378819219195776
2020	17.767716642388407
2021	17.19396450268903
2022	16.65917067067109