Year % of GDP 1960 39.237330657300554 1961 40.71494893221912 1962 41.54111063280241 1963 40.809845176657404 1964 41.592261904761905 1965 40.70710347064547 1966 36.40661938534279 1967 35.81785228817399 1968 36.648021545473384 1969 36.452917388792606 1970 40.30556566024009 1971 38.72093023255814 1972 41.384837313672065 1973 39.40197378111652 1974 33.195071367573505 1975 40.504833512352306 1976 43.00692383778438 1977 42.229150428682765 1978 44.507138001359614 1979 44.370607028753994 1980 48.36477987421384 1981 49.887514060742404 1982 54.42622950819672 1983 56.93265421618563 1984 56.076388888888886 1985 59.56471935853379 1986 62.90684624017957 1987 66.02040816326532 1988 63.86735572782084 1989 65.24143015112422 1990 50.8496395468589 1991 54.184333854050436 1992 52.64458724666336 1993 49.58156125668816 1994 36.54481364622362 1995 33.16376769398364 1996 36.54733575353332 1997 42.77044221184179 1998 46.713327631993515 1999 46.55764159483607 2000 46.010038955110886 2001 42.47504713456485 2002 43.78228724853107 2003 43.01968306383893 2004 41.429359737710996 2005 41.35537864870382 2006 45.40660560643908 2007 44.74630939089443 2008 44.15343369766963 2009 47.70633577740176 2010 48.24480947219211 2011 46.996955438693604 2012 47.65729585006693 2013 50.78028384665214 2014 52.2608997340118 2015 54.4967534886658 2016 57.08336430658251 2017 48.18596676835007 2018 50.830841913053995 2019 55.376764961856104 2020 51.88770796417689 2021 50.81401413760966 2022 44.6510226605248