Year	% of GDP
1976	-47.39069111424541
1977	-49.782734646581694
1978	-46.372438073682886
1979	-52.01017811704835
1980	-44.91372650012877
1981	-54.90128399834323
1982	-53.66341433852494
1983	-45.539012649725734
1984	-40.467089071581924
1985	-36.59799045975845
1986	-25.2354385181879
1987	-24.642497922770808
1988	-21.233401430030643
1989	-18.34673263244692
1990	-29.777987034153053
1991	-22.481406355645706
1992	-31.17937070684689
1993	-29.81497786015858
1994	-22.611686135909853
1995	-21.14026343139542
1996	-25.301325433667238
1997	-22.241915013723162
1998	-19.46219294805519
1999	-17.84880328124189
2000	-26.674112724423626
2001	-25.016892688215975
2002	-19.196349720341477
2003	-20.962275374548675
2004	-30.242618250132857
2005	-41.499731110513565
2006	-33.99872604305225
2007	-37.52442030120432
2008	-28.811932829204316
2009	-22.00105476489006
2010	-20.228392409634445
2011	-25.598524242692157
2012	-27.40361687138155
2013	-28.860320850324793
2014	-25.670990124928927
2015	-22.26903818162561
2016	-19.930297764332884
2017	-20.65534550406634
2018	-17.708391222663938
2019	-12.47903281957148
2020	-17.82303001050173
2021	-19.87512646359216