Year % GDP 1960 20.016731280913795 1961 18.38728241453744 1962 17.831169635254255 1963 11.532493008954216 1964 17.96730089501801 1965 18.34113515936886 1966 18.14499201821993 1967 18.73706847232252 1968 19.047672155016922 1969 18.46688048778344 1970 18.335256438865493 1971 23.79425340718293 1972 22.113790940525625 1973 25.715484868537676 1974 16.62367052092597 1975 19.67268649232828 1976 25.38944582736267 1977 25.728559872830996 1978 25.104621648113497 1979 22.95661604262591 1980 21.900143489070146 1981 22.33228619983649 1982 21.233933080563517 1983 22.24688835386617 1984 23.639239203673476 1985 27.582649495721668 1986 27.544517860307998 1987 29.02665321290542 1988 31.217242470272595 1989 32.609863785700824 1990 32.620379291882415 1991 33.78054540282601 1992 37.220716688942666 1993 41.46393446201754 1994 44.77936154556632 1995 46.39099757456955 1996 42.827120845301906 1997 48.44606485453887 1998 55.659382992380856 1999 55.687331898231626 2000 55.75106297797058 2001 56.09740917375539 2002 56.92899928663727 2003 69.70587714323764 2004 69.96579452858931 2005 71.93031425504002 2006 68.68787660435142 2007 71.74673615262195 2008 81.798055590861 2009 80.07701263580698 2010 85.35512077217112 2011 89.30543686042878 2012 98.84754495889536 2013 104.89417231725626 2014 96.72586475567665 2015 100.02073364942414 2016 93.50479377648496 2017 98.98370861501901 2018 75.31228317324751 2019 78.08275850495559 2020 91.81458680003274 2021 86.43599887845667 2022 72.41604085711072 2023 68.31658077754199