Year	% of GDP
1977	6.060919745707341
1978	7.091233087132074
1979	7.508198127687363
1980	8.429736731863036
1981	8.069811412294376
1982	7.8442193805439
1983	7.415448411827246
1984	7.063381409981791
1985	7.338615124871941
1986	7.1958237700781575
1987	8.006493272068044
1988	7.860750447223893
1989	7.672080006665327
1990	6.941292711494557
1991	6.311591410730838
1992	8.988842804473117
1993	10.494120182978897
1994	11.180129382590014
1995	11.86306642047293
1996	10.997245786610941
1997	10.791431128042154
1998	10.736154030650402
1999	10.58186680152862
2000	10.430827303838935
2001	10.601251022902874
2002	10.059267664952461
2003	9.551682830830769
2004	10.771310633229866
2005	11.084658812996855
2006	11.469736649880558
2007	12.067351679628812
2008	13.154710963548252
2009	12.16872198672471
2010	11.916795329539271
2011	12.74879933570894
2012	12.712372046980374
2013	12.790906538076387
2014	12.628947771906955
2015	11.58738320848566
2016	10.674673597640291
2017	10.43346395817869
2018	10.771591110305346
2019	10.276775744552685
2020	7.96989113248831
2021	8.168021857262987
2022	8.599246096142172