Year % of GDP 1990 31.19026056070247 1991 29.793677594623425 1992 32.63677414618335 1993 32.74896456658514 1994 31.293901406640284 1995 30.972874282733436 1996 32.470164080787775 1997 34.63300395727369 1998 37.316985233148245 1999 40.165903323795824 2000 40.380658761788844 2001 44.32343351911847 2002 41.798203921626566 2003 42.226163899748805 2004 39.78925956846653 2005 43.120450667824294 2006 46.31509653264212 2007 47.2943340171182 2008 51.82366434837127 2009 52.49394143692717 2010 54.63367838657862 2011 56.73756035017099 2012 57.13336131884949 2013 60.050756812663565 2014 62.274955426238066 2015 64.22049618815093 2016 68.28575359984458 2017 66.79307078798907 2018 67.9868290990009 2019 68.39530136002223 2020 77.95687333381244 2021 75.43094635279417 2022 67.93825155343538 2023 66.48773934888833