Year Percent of GDP 1980 27.562 1981 17.954 1982 2.715 1983 0.912 1984 7.991 1985 4.512 1986 6.318 1987 6.377 1988 7.255 1989 9.483 1990 13.483 1991 13.379 1992 11.175 1993 12.048 1994 15.292 1995 16.082 1996 13.491 1997 12.877 1998 13.519 1999 20.196 2000 18.748 2001 22.339 2002 15.083 2003 14.484 2004 16.13 2005 11.915 2006 14.442 2007 14.702 2008 12.859 2009 13.616 2010 14.905 2011 16.848 2012 15.15 2013 19.435 2014 18.695 2015 15.55 2016 11.574 2017 15.578 2018 16.597 2019 17.787 2020 19.704 2021 20.743 2022 23.091 2023 23.7 2024 26.925