Year Percent of GDP (Units) 1992 43.860 1993 44.570 1994 46.808 1995 47.524 1996 48.166 1997 52.013 1998 34.993 1999 30.504 2000 34.000 2001 31.713 2002 38.106 2003 43.058 2004 43.183 2005 43.181 2006 44.065 2007 42.952 2008 42.744 2009 47.005 2010 48.340 2011 45.460 2012 42.087 2013 40.989 2014 40.223 2015 39.038 2016 39.802 2017 38.716 2018 41.342 2019 43.961 2020 56.731 2021 74.350 2022 80.712 2023 75.598 2024 74.544 2025 74.449 2026 74.375 2027 74.275 2028 74.277 2029 74.090