Year Percent of GDP (Units) 1992 75.335 1993 120.764 1994 132.930 1995 125.575 1996 113.769 1997 68.759 1998 76.494 1999 83.770 2000 80.216 2001 81.859 2002 95.273 2003 92.649 2004 96.481 2005 70.092 2006 68.407 2007 35.166 2008 36.947 2009 25.958 2010 35.303 2011 39.192 2012 34.218 2013 38.539 2014 39.599 2015 45.913 2016 47.829 2017 51.340 2018 54.798 2019 50.666 2020 50.082 2021 50.442 2022 44.610 2023 35.738 2024 28.821 2025 27.344 2026 27.375 2027 26.767 2028 26.468 2029 25.839