Year % of GDP 1965 24.100136598396052 1966 24.044612888614562 1967 24.347228579866492 1968 25.403064463054164 1969 25.65551980398573 1970 26.46074208232236 1971 27.774285584660266 1972 29.12771253083364 1973 29.135254437732556 1974 26.936777394466088 1975 28.50785146762858 1976 30.74804612190997 1977 30.161379991538187 1978 31.840932156666423 1979 33.913162983203094 1980 34.83001485365702 1981 34.09151623515803 1982 35.87260477136683 1983 37.24195138256294 1984 38.02495165713928 1985 39.565392529837546 1986 45.03066109163635 1987 44.57430761341028 1988 43.44077349402819 1989 56.31597840898855 1990 41.61507948660003 1991 42.33936324503861 1992 47.82251798009869 1993 51.117157468289975 1994 47.82578152345888 1995 47.950823210972395 1996 50.63508948126646 1997 54.22711987350428 1998 56.08650637274021 1999 63.18096534911717 2000 62.966718611022785 2001 69.33000580719273 2002 72.5321596931705 2003 75.48597727475801 2004 74.14209984017253 2005 74.87289879767894 2006 78.34425089021232 2007 79.67271400577489 2008 82.23051072563463 2009 97.68328919852782 2010 96.74834263419291 2011 98.30342134895345 2012 103.49274541010071 2013 108.58709283613629 2014 113.60544773162154 2015 124.71579901203111 2016 128.7700423354387 2017 126.72260982352707 2018 126.56339004581571 2019 129.05754735642617 2020 145.12774602569408 2021 141.95538657357045 2022 152.76156074778282 2023 160.79016299014873