Year % of GDP 1974 1.3310062090952666 1975 2.598888566885821 1976 4.0147405849448505 1977 5.223799812401787 1978 6.054419092207824 1979 6.147334192208051 1980 5.479604473003771 1981 4.80250200992902 1982 2.9145463489724253 1983 4.002875146227622 1984 4.001959385600341 1985 3.8527030010594827 1986 3.803760469522504 1987 3.854655985438973 1988 4.3892567284246935 1989 6.079799902523645 1990 5.155674013498373 1991 5.938797973238554 1992 8.040204865812322 1993 4.787478619486421 1994 5.599355224222427 1995 4.559875502710834 1996 3.5965181595736513 1997 3.0907031802913654 1998 3.632387331393482 1999 2.0402193663685 2000 2.4396722141897924 2001 2.2656605828606793 2002 1.8145350466884358 2003 1.0356796420928542 2004 1.0196163719926115 2005 2.2373183267625745 2006 2.7817840432271312 2007 2.9476350501177704 2008 2.1237111492152816 2009 1.2985118806856335 2010 1.4637028891458854 2011 1.6102179060181798 2012 1.8647955933622773 2013 1.9875667993910668 2014 2.2933383628790494 2015 1.8830922702413817 2016 1.8756871649614635 2017 1.5413489105986362 2018 1.3934701262346907 2019 1.5078697577563573 2020 1.304438602098781 2021 1.305513613469585 2022 1.323960150211968 2023 1.1856161935877008