Year Percent of GDP (Units) 1995 33.209 1996 37.672 1997 39.582 1998 26.989 1999 31.364 2000 49.564 2001 38.155 2002 28.292 2003 36.307 2004 44.406 2005 53.637 2006 60.770 2007 56.506 2008 58.501 2009 44.658 2010 49.703 2011 56.485 2012 58.293 2013 54.653 2014 49.729 2015 28.929 2016 25.333 2017 35.693 2018 39.702 2019 37.445 2020 34.397 2021 55.207 2022 53.896 2023 53.183 2024 51.546 2025 49.109 2026 46.680 2027 44.588 2028 42.946 2029 41.589