Year % of GDP 1975 25.458812407306986 1976 22.91858741713121 1977 22.696881161707914 1978 24.126896801202488 1979 24.4725070193509 1980 25.861646952511542 1981 19.79777254775874 1982 18.48540094948071 1983 18.158159571792634 1984 20.011003506807278 1985 18.526114369869624 1986 22.029259742884843 1987 22.648917738664437 1988 23.301461897762287 1989 23.550903256366638 1990 21.62237514828779 1991 20.969467124670963 1992 22.571937321579554 1993 21.727465328676793 1994 23.095203431696493 1995 22.013314069078678 1996 20.53913381500464 1997 20.212513943145968 1998 20.016061464117158 1999 26.672434878834554 2000 26.317905628428928 2001 26.450284282986804 2002 26.310343990893735 2003 25.82513405089118 2004 26.10915511379661 2005 26.343556373667205 2006 26.04538295714119 2007 28.1098503567595 2008 30.1916893121448 2009 28.113408045839343 2010 27.05163370134967 2011 28.298665384828205 2012 28.545399138911826 2013 27.91839871564072 2014 26.447630810961005 2015 25.78990179223206 2016 25.018399336395035 2017 25.20696621742864 2018 25.551197683923917 2019 23.804624316461062 2020 22.222600842567036 2021 24.35419891052794 2022 27.30768569776203 2023 27.31875942215148