Year % of GDP 1965 44.91614762489438 1966 43.31857785037952 1967 44.194712199971825 1968 44.85076594178338 1969 44.395596118320704 1970 43.10489178578889 1971 44.015964450156844 1972 43.55196251403077 1973 41.63094183437416 1974 40.58538721750097 1975 41.391696975481096 1976 41.12749130584816 1977 41.42410281216592 1978 42.955253992481204 1979 42.99442947291558 1980 44.83650027069278 1981 44.230546458750766 1982 42.86459412267125 1983 42.0487989334323 1984 42.433274663623635 1985 43.155895028717026 1986 43.812738566652634 1987 42.64555382745514 1988 43.2047828081715 1989 43.225691297195176 1990 44.01610898572558 1991 46.571139935336355 1992 48.66820737827259 1993 50.039414796058466 1994 48.128228245023685 1995 47.84399514092861 1996 47.889378920137524 1997 48.48428151720945 1998 49.38844511354841 1999 49.12914316666022 2000 49.13670099629745 2001 50.026294521019544 2002 49.41138269113961 2003 49.22214518929267 2004 48.54782777015101 2005 48.65522660044477 2006 48.63900711530004 2007 48.914814735638856 2008 48.46086175495964 2009 49.83918897711555 2010 49.19957945525895 2011 48.818336096936534 2012 49.493560415965135 2013 50.3040060331095 2014 51.206365173203494 2015 52.727860899875424 2016 53.42385046075816 2017 53.39191388163641 2018 53.426774095345586 2019 54.195936797733026 2020 53.94240216879231 2021 52.569399989004296 2022 52.39813683077846 2023 53.498780088824326