Year % of GDP 1995 35.75690390928323 1996 37.481064963108516 1997 53.10782496891261 1998 55.56570386230408 2011 69.63767391652007 2012 63.66915264054693 2013 70.58076979200077 2014 73.32022747714657 2015 79.86441814757929 2016 80.73558196755269 2017 75.88872781691951 2018 64.57038142186128 2019 75.69848824949761 2020 83.887494535694 2021 82.38361129494513