Year % of GDP 1980 17.702056647015958 1981 11.764193798647115 1982 11.625698285350687 1983 13.348751116100862 1984 15.063007929999264 1985 14.466552864286589 1986 17.193766826165923 1987 17.632131597035354 1988 17.46761339511825 1989 18.848329533063133 1990 18.851351013650213 1991 18.73658672355306 1992 21.76492920425971 1993 22.378495842035086 1994 25.45991528785587 1995 22.620912679766477 1996 20.09069806039112 1997 19.53320367046545 1998 18.419702809729824 1999 24.837452089571368 2000 24.066435759752622 2001 24.466232655689662 2002 24.05079613832422 2003 23.95745591667453 2004 24.73456066114459 2005 25.102333816576888 2006 24.47932701484889 2007 24.409133940585516 2008 24.621089744901667 2009 22.215683214328635 2010 22.774925169791636 2011 23.327843953056565 2012 21.15874831686642 2013 20.001169582642106 2014 19.49198307957115 2015 18.0646100086578 2016 17.624792687521065 2017 19.111319839915915 2018 19.685667559559533 2019 19.51750707433994 2020 17.42182902262332 2021 19.224938526190577 2022 21.36192596992319 2023 21.761399736508277