Year % of GDP 1995 33.06161049063289 1996 25.15245489788664 1997 30.240240668803537 1998 31.931528288598482 1999 20.99237085784171 2000 22.21235549456124 2001 26.95981143600452 2002 37.90757896556129 2003 41.18298746369287 2004 40.34747311278729 2005 35.52672582635292 2006 37.15684683837234 2007 34.61187834613544 2008 34.338201758961176 2009 48.99067140596209 2010 41.88702581693198 2011 39.07583074737486 2012 39.604945548243556 2013 42.78491467376592 2014 46.81392752958543 2015 48.659888568632724 2016 46.98099552767701 2017 46.76262482642638 2018 43.20690961224754 2019 42.12320900571502 2020 44.395592145061705 2021 40.93374158188327 2022 41.80624841378571 2023 39.720998918131976