Year Percent of GDP 1980 -0.973 1981 0.391 1982 0.603 1983 1.673 1984 2.655 1985 3.587 1986 4.066 1987 3.326 1988 2.577 1989 2.067 1990 1.427 1991 1.9 1992 2.875 1993 2.962 1994 2.66 1995 2.026 1996 1.426 1997 2.155 1998 2.854 1999 2.504 2000 2.673 2001 2.003 2002 2.652 2003 3.136 2004 3.781 2005 3.578 2006 3.853 2007 4.698 2008 2.831 2009 2.777 2010 3.877 2011 2.109 2012 0.962 2013 0.891 2014 0.759 2015 3.108 2016 3.955 2017 4.036 2018 3.502 2019 3.485 2020 3.577 2021 3.488 2022 3.47 2023 3.46 2024 3.474