Year Percent of GDP 1993 17.751 1994 17.404 1995 19.398 1996 20.595 1997 19.725 1998 22.412 1999 22.854 2000 20.377 2001 23.637 2002 22.074 2003 26.426 2004 28.836 2005 26.035 2006 24.391 2007 18.716 2008 18.756 2009 15.471 2010 15.965 2011 26.23 2012 23.743 2013 24.185 2014 24.686 2015 38.666 2016 39.524 2017 41.525 2018 47.051 2019 51.599 2020 55.892 2021 59.817 2022 63.212 2023 66.725 2024 70.18