Year % of GDP 1979 27.217221627745957 1980 28.546851330880763 1981 30.85989010989011 1982 32.59622836476363 1983 36.15322305593451 1984 30.446981932915147 1985 31.597490991592153 1986 29.08941476548108 1987 31.77905344429961 1988 36.476290561262786 1989 43.08907272027703 1990 39.51602454824412 1991 44.08155039801162 1992 51.132967251479876 1993 52.76743336984301 1994 52.24599400198261 1995 52.085750404650234 1996 51.56302334608773 1997 51.563749356766806 1998 54.52638910385389 1999 55.63649460659609 2000 59.83040863693909 2001 54.6134508123838 2002 50.80517258652446 2003 54.23756095251622 2004 54.69023768293842 2005 54.45903414667163 2006 51.698066577773695 2007 54.739424094741196 2008 55.08178861402977 2009 58.844725762858864 2010 60.216642727367855 2011 58.43318788898979 2012 59.12632991254324 2013 55.33599749388287 2014 52.36134126891508 2015 53.87850648094409 2016 51.4686526315015 2017 49.27459142769041 2018 49.17011848569502 2019 48.517288990074256 2020 61.50599809770425 2021 68.18093586624566 2022 63.095974881691866 2023 60.48257947570236