Year Percent of GDP 1995 48.714 1996 43.147 1997 42.685 1998 38.672 1999 39.345 2000 36.378 2001 37.143 2002 41.545 2003 46.327 2004 45.069 2005 46.441 2006 46.948 2007 44.156 2008 46.295 2009 49.433 2010 53.127 2011 54.104 2012 53.716 2013 55.692 2014 50.414 2015 51.283 2016 54.227 2017 50.569 2018 48.364 2019 47.475 2020 48.208 2021 49.143 2022 49.87 2023 50.513 2024 51.228