Year % of GDP 1977 27.586507790779308 1978 27.1496425842408 1979 32.16391529721943 1980 34.425425934595616 1981 36.569697338620706 1982 38.801939114369205 1983 43.420503972878734 1984 46.88320463085033 1985 51.017491608967006 1986 57.747924477679355 1987 60.14053901197436 1988 58.96368088314685 1989 62.694432301739425 1990 66.92166282130029 1991 71.20343792085481 1992 76.43975129659135 1993 81.83128089371027 1994 81.85346928769152 1995 84.75962186186628 1996 90.34649880685659 1997 99.95006815534708 1998 111.77607838141027 1999 117.76888555689692 2000 118.48293102293823 2001 125.51502632946654 2002 127.06538933612747 2003 132.21956886790653 2004 130.10321484659852 2005 130.83993500267067 2006 135.39851745033346 2007 130.6640885480025 2008 130.84747165018516 2009 153.7780207038164 2010 151.85893972824908 2011 152.21793233580578 2012 158.85575541506418 2013 165.77301690319342 2014 170.9074360992453 2015 181.7072598548446 2016 185.7219471423747 2017 180.7138382818698 2018 176.52912858097886 2019 178.3410232739743 2020 193.4955368751545 2021 188.7346940482104 2022 198.16519240547873 2023 210.77329944119768