Year Percent of GDP 1992 35.256 1993 30.472 1994 19.753 1995 23.025 1996 19.351 1997 18.421 1998 17.373 1999 23.783 2000 23.645 2001 25.516 2002 27.685 2003 27.714 2004 31.766 2005 25.45 2006 23.042 2007 24.101 2008 20.353 2009 15.589 2010 18.654 2011 16.158 2012 13.568 2013 9.29 2014 9.481 2015 17.663 2016 20.23 2017 18.567 2018 19.792 2019 21.431 2020 22.376 2021 22.298 2022 23.655 2023 24.755 2024 25.742