Year Percent of GDP (Units) 1994 11.318 1995 10.764 1996 12.493 1997 14.780 1998 14.780 1999 14.976 2000 14.997 2001 16.115 2002 15.798 2003 15.535 2004 22.444 2005 23.753 2006 25.941 2007 28.460 2008 29.852 2009 28.471 2010 26.486 2011 26.324 2012 27.024 2013 25.349 2014 25.736 2015 25.829 2016 26.326 2017 26.758 2018 25.920 2019 26.846 2020 24.949 2021 25.217 2022 26.462 2023 27.571 2024 28.148 2025 27.740 2026 27.591 2027 27.603 2028 27.610 2029 27.563