Year Percent of GDP (Units) 2000 55.527 2001 63.465 2002 59.452 2003 22.936 2004 22.015 2005 71.059 2006 38.003 2007 61.500 2008 57.236 2009 54.344 2010 43.947 2011 38.839 2012 39.317 2013 40.734 2014 49.542 2015 59.888 2016 57.554 2017 55.664 2018 59.182 2019 57.687 2020 56.489 2021 54.450 2022 49.247 2023 49.911 2024 48.480 2025 47.812 2026 47.206 2027 46.344 2028 45.683 2029 45.217