Year % of GDP 1960 56.60080464908359 1961 51.096436363636364 1962 50.83127690100431 1963 54.56719046328908 1964 61.76761195945078 1965 42.33597229094508 1966 43.2208228379513 1967 38.34436206705765 1968 38.91537600298564 1969 37.750320649850366 1970 31.700819672131153 1971 29.460071174377223 1972 27.64360202006952 1973 29.21104107802652 1974 34.885154179462376 1975 36.53102306505625 1976 32.216567890606896 1977 35.594995467904525 1978 66.36948318293683 1979 72.72756599919828 1980 77.00102214138622 1981 66.51049938238927 1982 60.015538402628025 1983 55.786539584378424 1984 55.16693767642737 1985 53.12404003079292 1986 47.96095256137379 1987 51.64492204775243 1988 53.565505311241445 1989 53.425747644814614 1990 57.22963851527734 1991 56.00885469121379 1992 60.80586338978985 1993 66.25604275719877 1994 68.13679535266041 1995 68.9425058253416 1996 68.43559536952175 1997 69.42790742604508 1998 68.0089804771382 1999 66.83559576586197 2000 71.71106027499214 2001 68.50265809671465 2002 65.33411973689617 2003 62.47826793117904 2004 66.44879739779351 2005 62.20245011582766 2006 60.622771524085636 2007 58.85891643957226 2008 55.03044563210406 2009 41.34908795603493 2010 37.71392872937779 2011 45.02364782823211 2012 40.55518622413239 2013 36.63738723972468 2014 37.21742998866402 2015 34.62728350339914 2016 33.510095705760996 2017 34.26710023076051 2018 36.1113367103917 2019 35.810827113567875 2020 30.961647722196002 2021 37.3956094318244 2022 42.346824319921325 2023 34.04820883163834