Year % of GDP 1960 8.080463689055573 1961 10.614908965991068 1962 11.196344050922148 1963 11.95991671004685 1964 11.18846952485648 1965 12.3646408839779 1966 13.197547542346461 1967 14.392542511780373 1968 16.576753310446296 1969 18.37225886967374 1970 21.286668357426663 1971 22.562717097645695 1972 24.240506329113924 1973 27.789349997329488 1974 28.236503631113834 1975 34.31578004656994 1976 33.98255296421577 1977 35.82374768089054 1978 39.192841682943566 1979 41.47746855074961 1980 49.909394462369626 1981 57.761442729939425 1982 62.73292818461269 1983 69.92689228323206 1984 74.89013199245758 1985 88.17464825093585 1986 101.46604464061235 1987 89.57661713017204 1988 86.46248782072101 1989 95.65288455142398 1990 69.41266868769998 1991 73.7605458689796 1992 108.25732336974556 1993 105.70710942309256 1994 108.90965461140584 1995 124.1596508340338 1996 138.37459169517444 1997 154.89211832360402 1998 152.85005807380944 1999 141.66651327951482 2000 126.72933841094722 2001 127.23220583188449 2002 121.35191681910582 2003 118.59151035535105 2004 111.62878252835155 2005 106.29293863990081 2006 103.48916693477037 2007 101.4203351669823 2008 96.6045684844061 2009 111.4473129954535 2010 107.03744244820643 2011 108.35499186713655 2012 114.05428570546059 2013 119.79291768953009 2014 120.52868352680707 2015 123.06518059016996 2016 121.93542888583902 2017 117.12730164880654 2018 120.24618306950588 2019 120.67837752877224 2020 133.78574944400754 2021 127.21578419766342 2022 113.26889739816417 2023 117.16379054070507