Year	% of GDP
1980	35.28860458196965
1981	39.09028871391076
1982	50.33521333786499
1983	52.13038247609162
1984	52.53559092646783
1985	52.49238001445826
1986	49.17336865944727
1987	48.24988634833795
1988	46.84206480874201
1989	43.98350679104969
1990	40.64072641080502
1991	35.54654355815691
1992	32.25624072616413
1993	34.24956745488115
1994	33.25347955872385
1995	31.336206199818616
1996	32.795727910720736
1997	33.29150213066954
1998	34.46142489019872
1999	30.087332080210793
2000	27.622543184766364
2001	28.03242182722552
2002	26.514699597357144
2003	26.235181121566235
2004	24.334683676965145
2005	24.232845679260272
2006	28.778280171771986
2007	34.43910187770852
2008	33.4564054765705
2009	35.74973162757538
2010	39.45023171430711
2011	35.563137889833065
2012	35.13401983613162
2013	37.92176039477099
2014	33.986982266238755
2015	33.661721601476394
2016	31.007877326075757
2017	39.38879128904679
2018	39.61252916629612
2019	35.30560023035452
2020	42.261959080124576