Year Percent of GDP (Units) 1989 9.921 1990 9.566 1991 12.595 1992 18.212 1993 22.052 1994 23.232 1995 23.083 1996 21.317 1997 18.179 1998 14.627 1999 11.024 2000 7.122 2001 4.685 2002 2.758 2003 0.752 2004 -1.226 2005 -3.802 2006 -6.305 2007 -7.258 2008 -5.292 2009 1.224 2010 6.302 2011 10.569 2012 13.788 2013 16.018 2014 19.049 2015 22.081 2016 23.363 2017 23.292 2018 24.069 2019 27.830 2020 36.014 2021 35.578 2022 30.107 2023 28.321 2024 29.093 2025 29.312 2026 28.793 2027 27.614 2028 25.996 2029 24.278