Year % of GDP 1980 30.49241983637703 1981 29.00352289884247 1982 24.98604074035777 1983 25.09575845391184 1984 24.07415008730412 1985 25.1373664301295 1986 21.37009859457701 1987 30.057238587184145 1988 32.47716135829611 1989 32.74169260621741 1990 35.2033240362542 1991 35.69859985261606 1992 39.1195219123506 1993 45.28738708598193 1994 44.68474124809742 1995 65.2782796899215 1996 65.93147486282308 1997 49.09088243773485 1998 54.435409352019825 1999 53.40346275692275 2000 54.016258913815804 2001 53.4910733280046 2002 55.26064208121516 2003 53.85262003611505 2004 54.05453376868209 2005 53.529071463999166 2006 52.94011188836025 2007 53.92317203975249 2008 53.21625176608046 2009 56.0934493454046 2010 59.50056964705198 2011 57.59050614353054 2012 57.181871849787136 2013 58.19023118344874 2014 58.728072243648576 2015 58.27517171611032 2016 57.59306460104081 2017 57.95866611450759 2018 60.83792710143282 2019 61.39843946270036 2020 61.427284744248446 2021 62.25733124207882 2022 59.57751091932055 2023 59.329780716803256