Year Percent of GDP (Units) 1990 17.894 1991 15.139 1992 16.576 1993 26.958 1994 23.970 1995 22.376 1996 20.146 1997 19.016 1998 14.482 1999 18.597 2000 22.874 2001 16.658 2002 15.577 2003 15.759 2004 15.400 2005 18.745 2006 16.484 2007 14.089 2008 14.581 2009 14.290 2010 15.282 2011 16.136 2012 12.586 2013 12.476 2014 13.112 2015 14.823 2016 15.265 2017 15.504 2018 13.612 2019 9.657 2020 7.793 2021 10.989 2022 10.990 2023 11.205 2024 11.127 2025 11.086 2026 11.076 2027 11.150 2028 11.241 2029 11.344