Year Percent of GDP 1994 11.636 1995 11.066 1996 12.844 1997 15.195 1998 15.195 1999 15.397 2000 15.417 2001 16.567 2002 16.242 2003 15.971 2004 23.075 2005 24.42 2006 26.669 2007 29.259 2008 30.69 2009 29.27 2010 28.28 2011 28.222 2012 28.81 2013 27.512 2014 28.007 2015 28.1 2016 28.279 2017 29.199 2018 28.431 2019 28.212 2020 27.685 2021 27.354 2022 27.343 2023 27.288 2024 27.314