Year	% of GDP
1960	106.013745704467
1961	102.8067361668
1962	105.275229357798
1963	105.796038151137
1964	101.078360891445
1965	99.816961561928
1966	98.3870967741936
1967	97.338792221085
1968	99.2168379833578
1969	97.7426636568849
1970	89.1780256092524
1971	92.8524374176548
1972	90.2611367127496
1973	87.5549450549451
1974	83.6186348862405
1975	83.0470077402303
1976	82.1732026143791
1977	79.9450549450549
1978	79.480454602223
1979	87.3915558126084
1980	89.234901999801
1981	88.1689378214963
1982	84.9229287090559
1983	84.77384723548
1984	85.1762964259281
1985	87.1150187670317
1986	89.6681646919969
1987	85.0866748306609
1988	87.8027416251698
1989	91.1808985730117
1990	86.5982255020154
1991	85.8000164184418
1992	99.3149964423521
1993	100.920438510395
1994	103.014128197156
1995	100.327792047465
1996	96.7238297566345
1997	100.630083028708
1998	91.8698337535458
1999	100.621412456592
2000	96.1666280026987
2001	96.2394247340969
2002	97.8759670642629
2003	97.5791959715104
2004	100.01505689639
2005	104.110919595655
2006	99.0782565525403
2007	86.7521465634917
2008	93.4231310525422
2009	87.1628802208008
2010	89.2502243979867
2011	94.8087074124409
2012	103.367782013675
2013	93.9289945953674
2014	93.5662066636624
2015	95.3913798650417
2016	101.752468011638
2017	93.7876933193805