Year Percent of GDP (Units) 1991 71.758 1992 58.014 1993 68.249 1994 90.697 1995 107.125 1996 90.486 1997 64.402 1998 67.175 1999 75.617 2000 57.910 2001 44.600 2002 41.691 2003 28.229 2004 21.793 2005 1.874 2006 -10.307 2007 -19.775 2008 -33.645 2009 -36.183 2010 -30.562 2011 -28.479 2012 -26.722 2013 -27.412 2014 -19.509 2015 -6.755 2016 11.786 2017 19.024 2018 23.126 2019 27.100 2020 38.738 2021 45.402 2022 35.615 2023 40.103 2024 43.847 2025 47.192 2026 49.470 2027 51.558 2028 53.600 2029 56.184