Year % of GDP 1982 31.731368167302378 1983 31.869321692604316 1984 33.15129897454619 1985 33.28785058349783 1986 33.150413609941836 1987 35.345863447050505 1988 36.09795903126491 1989 34.57416988473719 1990 34.99011755115488 1991 36.48557035547876 1992 38.39831920885358 1993 39.80623847307807 1994 39.93027488609163 1995 37.95311642388795 1996 37.09001203367113 1997 37.958107700224325 1998 36.57758156358666 1999 34.61162922027362 2000 34.74419713940248 2001 35.92986407466557 2002 37.04342028647976 2003 39.87939592177941 2004 42.650705093019525 2005 43.24782205790608 2006 45.4044262565323 2007 47.068214913738345 2008 48.43502864428975 2009 47.14593053953648 2010 48.332795403015005 2011 46.674647987357034 2012 45.8784533666501 2013 44.653256665369796 2014 44.83676799671303 2015 42.83609581401196 2016 42.00651355866545 2017 42.608550905215964 2018 42.24164019511007 2019 41.517747758466136 2020 41.24111191513817 2021 42.69569355761463 2022 43.50936767016497