Year Percent of GDP (Units) 1989 16.896 1990 16.847 1991 14.592 1992 12.647 1993 14.786 1994 13.191 1995 12.699 1996 12.383 1997 10.599 1998 12.767 1999 11.905 2000 11.901 2001 10.853 2002 8.421 2003 8.884 2004 10.560 2005 13.250 2006 14.730 2007 13.694 2008 12.391 2009 14.289 2010 15.089 2011 18.206 2012 19.098 2013 20.485 2014 21.901 2015 22.891 2016 22.903 2017 16.272 2018 18.796 2019 16.565 2020 23.693 2021 21.787 2022 25.981 2023 24.940 2024 24.404 2025 21.374 2026 21.808 2027 22.100 2028 22.565 2029 22.318