Year	Percent of GDP
1960-01-01	2.76926048641026
1961-01-01	2.62507017668463
1962-01-01	2.71308811301694
1963-01-01	2.69006177159985
1964-01-01	2.71624157791678
1965-01-01	2.86446018585619
1966-01-01	3.14801055833740
1967-01-01	3.13074004721962
1968-01-01	3.51720840153656
1969-01-01	3.53587444465651
1970-01-01	3.72052969382008
1971-01-01	3.90875432893358
1972-01-01	4.34420950238729
1973-01-01	4.86708447163964
1974-01-01	6.98307329808328
1975-01-01	6.17007766252819
1976-01-01	6.91912140199424
1977-01-01	7.71063988308421
1978-01-01	7.91794597985110
1979-01-01	8.44682035989448
1980-01-01	9.00764687923675
1981-01-01	8.52826022636798
1982-01-01	7.62521163819225
1983-01-01	7.42016046188210
1984-01-01	8.44781088011056
1985-01-01	8.35315416925604
1986-01-01	8.34655603865902
1987-01-01	8.73816916713481
1988-01-01	8.77622646123485
1989-01-01	8.38859529440541
1990-01-01	8.29822686808393
1991-01-01	7.92669328921169
1992-01-01	8.16682863488936
1993-01-01	8.46499655138540
1994-01-01	9.09574085381996
1995-01-01	9.73307171725313
1996-01-01	9.84948677772794
1997-01-01	10.13815213543990
1998-01-01	10.06321460328510
1999-01-01	10.63224350278280
2000-01-01	11.87734544793110
2001-01-01	10.78655613078900
2002-01-01	10.61638525231770
2003-01-01	10.97143416140800
2004-01-01	12.02714931482770
2005-01-01	12.83157013387250
2006-01-01	13.41999074058390
2007-01-01	13.53897596343220
2008-01-01	14.29160956260550
2009-01-01	10.78950157826160
2010-01-01	12.76168226616550
2011-01-01	14.20446950803210
2012-01-01	14.05543690452370
2013-01-01	13.51572776470140
2014-01-01	13.45071730955890
2015-01-01	12.34188128891860
2016-01-01	11.69307141994260
2017-01-01	12.01779884443480