Year Percent of GDP (Units) 1990 12.440 1991 13.816 1992 19.948 1993 18.482 1994 19.134 1995 21.749 1996 23.040 1997 24.631 1998 23.650 1999 18.706 2000 18.928 2001 19.560 2002 18.484 2003 20.727 2004 20.280 2005 18.530 2006 16.384 2007 17.194 2008 15.416 2009 13.545 2010 11.661 2011 5.501 2012 8.704 2013 8.106 2014 6.238 2015 1.645 2016 1.402 2017 2.084 2018 5.829 2019 6.468 2020 5.611 2021 5.614 2022 5.418 2023 5.447 2024 5.387 2025 6.095 2026 9.280 2027 13.799 2028 13.834 2029 13.402