Year % of GDP 1987 40.845070422535215 1988 46.57534246575342 1989 45.13888888888889 1990 45.33333333333333 1991 31.25 1992 66.28686327077749 1993 71.7501478938092 1994 109.1305109165466 1995 42.326783100180556 1996 32.37034509499806 1997 42.14284177479198 1998 37.107934927619915 1999 38.09628133434473 2000 39.6669292250666 2001 38.86855858555589 2002 42.399849785407724 2003 46.177648556182206 2004 47.91181051067252 2005 51.27055563682676 2006 56.654508009485205 2007 57.57511563040638 2008 58.03490450801839 2009 48.64783720671633 2010 49.20592035757822 2011 51.6024928158167 2012 54.09530021149227 2013 52.872419520900536 2014 55.76881218082088 2015 56.879062174366105 2016 54.9269603042158 2017 56.707725205612 2018 60.152199497509585 2019 63.505771829626354 2020 55.99076000723051 2021 58.926546340820764 2022 62.21655846829536 2023 56.9281098123271