Year Percent of GDP (Units) 1995 46.976 1996 50.573 1997 46.240 1998 42.718 1999 41.569 2000 41.495 2001 44.375 2002 46.330 2003 49.978 2004 53.595 2005 58.177 2006 59.425 2007 60.540 2008 64.053 2009 76.057 2010 82.219 2011 103.838 2012 117.065 2013 118.910 2014 120.650 2015 121.048 2016 119.441 2017 116.018 2018 113.391 2019 109.857 2020 122.983 2021 117.353 2022 106.673 2023 94.988 2024 90.822 2025 87.055 2026 83.468 2027 80.077 2028 76.829 2029 73.716