Year % of GDP 1970 30.098846006153206 1971 30.396089866107484 1972 31.82280785816086 1973 34.06466664362885 1974 40.802894818058114 1975 37.400447603923574 1976 41.19215193746125 1977 41.80955686268897 1978 41.268188138924955 1979 43.710419189084604 1980 42.97265631898694 1981 45.28203799801289 1982 43.50828909355831 1983 40.18969388100345 1984 42.4356673673919 1985 42.63715502116536 1986 36.1633469118778 1987 35.56260867453797 1988 35.1111015717216 1989 37.05276938014777 1990 36.32174939944298 1991 33.87843729671869 1992 34.913711624832835 1993 37.75922919943697 1994 40.45502883418452 1995 45.684554166423816 1996 42.87869833489296 1997 44.5885059769363 1998 45.09273823093189 1999 44.620790801510786 2000 50.40558982512384 2001 50.03480463092522 2002 48.0579242988141 2003 46.14884477819208 2004 47.43033038884708 2005 49.301010762131824 2006 53.16817918462371 2007 55.06145563169795 2008 54.492875798818766 2009 45.418761787481664 2010 52.00618837428195 2011 55.14552246002713 2012 55.65472084460163 2013 54.8675793967737 2014 55.322115150642226 2015 56.418176161608834 2016 55.3676028142217 2017 58.604175947291736 2018 60.303551242661705 2019 59.878980223454946 2020 55.265705769871396 2021 62.067946895569136 2022 74.64459001313297 2023 68.72774381746865