Year Percent of GDP (Units) 1990 236.543 1991 135.415 1992 123.197 1993 111.737 1994 85.496 1995 65.378 1996 64.643 1997 70.841 1998 67.421 1999 75.758 2000 65.758 2001 63.417 2002 64.248 2003 67.757 2004 60.906 2005 55.606 2006 39.202 2007 24.022 2008 22.323 2009 23.678 2010 21.697 2011 24.647 2012 27.086 2013 37.317 2014 35.227 2015 38.319 2016 39.423 2017 41.285 2018 42.408 2019 42.927 2020 52.399 2021 50.200 2022 49.154 2023 44.496 2024 44.566 2025 44.469 2026 44.044 2027 43.572 2028 43.078 2029 39.591