Year % of GDP 1960 3.69669893126365 1961 3.70425944708381 1962 5.57216638443197 1963 6.43953257232658 1964 6.32818666869908 1965 6.69907771502109 1966 7.20348300277057 1967 7.81090243771189 1968 7.86541049798116 1969 6.64936270785853 1970 4.92105116330971 1971 5.39063554176225 1972 6.14062910636447 1973 6.04818962421235 1974 4.69955111201796 1975 6.81400193502837 1976 7.61934054258093 1977 9.24490099746911 1978 10.9924278146063 1979 10.389634601044 1980 12.2269743142491 1981 5.80207511800543 1982 6.45060154702408 1983 6.20862285105613 1984 6.26604574083132 1985 6.03975050285746 1986 7.57498528753002 1987 6.60298586675137 1988 6.06602353784634 1989 5.09033317661795 1990 4.95752244265378 1991 5.24109646917474 1992 8.23451385667547 1993 7.00771816483841 1994 8.03728816845843 1995 6.5087114958491 1996 6.17444394221661 1997 7.03059014697708 1998 7.61945239355999 1999 8.16880785547431 2000 8.24898869751761 2001 9.88080739655231 2002 8.084342998 2003 8.90948472570348 2004 8.46166405532793 2005 8.43509526303227 2006 8.12036045279147 2007 13.7970169332616 2008 18.6330147009187 2009 19.6256016608172 2010 13.490742840586 2011 11.0436296114106 2012 10.6047037712344 2013 11.5332149415284 2014 13.2970053767392 2015 13.0786844773698 2016 14.6080388563102 2017 12.8520298076198 2018 10.2465813012399 2019 11.1575566541912 2020 12.1318506028341 2021 13.4494491647875 2022 12.9574673117641