Year % of GDP 1970 30.770899006536528 1971 30.67833371368049 1972 30.68232589522769 1973 34.03104603033765 1974 39.08266980901678 1975 36.87042767858524 1976 38.183698688677495 1977 38.694971644294945 1978 38.18810997247607 1979 40.49125231901006 1980 43.00439119104497 1981 43.26652228186333 1982 41.58217783240284 1983 40.71934532529023 1984 42.44014544690137 1985 41.71595026436925 1986 38.94135339654466 1987 39.269011081028324 1988 40.04863858893049 1989 41.111694635894054 1990 40.91163156353313 1991 40.27329931839755 1992 42.90101640150334 1993 41.249101904310265 1994 42.18294023804936 1995 44.52659118495722 1996 44.80911134869849 1997 46.6110293062012 1998 47.13367554364297 1999 47.88770507322189 2000 52.156474270678004 2001 50.80300227705417 2002 49.64003934089731 2003 49.960758341318005 2004 52.707388812530695 2005 54.940737890381925 2006 57.78153100056159 2007 58.92844595193401 2008 61.55675768084243 2009 53.719709932109694 2010 58.7032097411668 2011 62.52626867784486 2012 62.893293540933264 2013 62.52237093571252 2014 62.44899519863712 2015 60.73006310091937 2016 58.99623403455591 2017 60.88194490012955 2018 62.07134475050342 2019 61.235311842504416 2020 56.3702248100109 2021 60.31234616003286 2022 67.18493462952802