Year	Percent of GDP
1978-01-01	23.4172563569997
1979-01-01	25.3575266804577
1980-01-01	28.7045572598537
1981-01-01	28.5197574229841
1982-01-01	27.9829504533093
1983-01-01	29.2452885160703
1984-01-01	30.3586551463824
1985-01-01	30.4305442057069
1986-01-01	23.0344789584789
1987-01-01	22.7500283119388
1988-01-01	21.9601464808392
1989-01-01	26.4433961016257
1990-01-01	28.1269375128390
1991-01-01	27.9191023885760
1992-01-01	26.7492848227661
1993-01-01	26.5731729463275
1994-01-01	27.2774764151182
1995-01-01	27.6648860204477
1996-01-01	30.2976302591496
1997-01-01	30.0585678102219
1998-01-01	26.2019674725280
1999-01-01	27.8974517283402
2000-01-01	35.0643275018221
2001-01-01	33.9998264821332
2002-01-01	30.3938861621449
2003-01-01	29.8572089809377
2004-01-01	31.0825033311215
2005-01-01	33.7059801321297
2006-01-01	35.4382417655330
2007-01-01	33.8953350919855
2008-01-01	36.4483094481428
2009-01-01	30.0675432357556
2010-01-01	30.3537162626725
2011-01-01	32.2040909244084
2012-01-01	31.5203730361902
2013-01-01	29.7802571663284
2014-01-01	28.8195283160530
2015-01-01	26.7866694428117
2016-01-01	24.1864591647675
2017-01-01	26.0852197602697