Year Percent of GDP 1992 44.078 1993 14.7 1994 18.2 1995 24.2 1996 23 1997 18.899 1998 20.901 1999 17.1 2000 19.6 2001 21.1 2002 21.2 2003 20.813 2004 24.5 2005 28 2006 28.37 2007 28.196 2008 29.834 2009 29.472 2010 25.489 2011 26.392 2012 31.084 2013 30.295 2014 30.135 2015 26.852 2016 25.336 2017 31.85 2018 41.015 2019 41.185 2020 41.355 2021 41.669 2022 42.057 2023 42.37 2024 42.667