Year Percent of GDP (Units) 1995 69.377 1996 63.507 1997 69.101 1998 61.284 1999 63.348 2000 82.104 2001 73.982 2002 69.035 2003 60.604 2004 55.050 2005 49.460 2006 18.283 2007 17.830 2008 14.170 2009 15.936 2010 15.078 2011 14.747 2012 18.130 2013 19.554 2014 22.086 2015 29.870 2016 32.827 2017 36.507 2018 37.010 2019 39.787 2020 44.971 2021 51.338 2022 50.693 2023 51.819 2024 48.911 2025 47.412 2026 46.532 2027 46.237 2028 46.036 2029 45.823