Year	Percent of GDP
1963-01-01	2.18870301201249
1964-01-01	3.27431101623022
1965-01-01	5.43091523476672
1966-01-01	6.35239066302790
1967-01-01	6.51195376676195
1968-01-01	7.38152000237168
1969-01-01	7.98332055724357
1970-01-01	9.21287840655859
1971-01-01	10.69205330959860
1972-01-01	14.75518145208530
1973-01-01	22.76974523794990
1974-01-01	23.05656228175160
1975-01-01	22.39270767536410
1976-01-01	25.69006774841910
1977-01-01	26.10142481185570
1978-01-01	24.57073966068170
1979-01-01	22.54567055405070
1980-01-01	26.94746133741460
1981-01-01	29.43964368476860
1982-01-01	28.06180409703110
1983-01-01	27.87505744614020
1984-01-01	30.23438566086520
1985-01-01	29.90808463349070
1986-01-01	29.97161323496350
1987-01-01	32.16750309007030
1988-01-01	30.68363578550830
1989-01-01	25.58606754904930
1990-01-01	23.27046451143720
1991-01-01	22.04019482664150
1992-01-01	21.94415674758670
1993-01-01	21.33176203616850
1994-01-01	21.02520232035010
1995-01-01	22.51206850160830
1996-01-01	21.75752969087760
1997-01-01	24.34732721608130
1998-01-01	35.53145733241920
1999-01-01	29.51120080424700
2000-01-01	30.68554232800150
2001-01-01	28.25719204494250
2002-01-01	26.56806715542210
2003-01-01	28.35625337775820
2004-01-01	33.11397940783800
2005-01-01	31.68670601650360
2006-01-01	32.13934827389890
2007-01-01	33.02435448405670
2008-01-01	41.56446031001810
2009-01-01	39.85719312194310
2010-01-01	42.46859262488890
2011-01-01	46.14460221244930
2012-01-01	44.83734674638990
2013-01-01	42.85689536828090
2014-01-01	40.55193503067030
2015-01-01	38.06683236075670
2016-01-01	34.99047380197170
2017-01-01	37.48522452106000