Year % of GDP 1993 15.843228192771083 1994 23.943162237115786 1995 22.175270374523432 1996 32.39656840555322 1997 45.429363184079605 1998 62.24487181433109 1999 68.97502149233618 2000 55.77806831181565 2001 60.150597479129154 2010 48.21741067399684 2011 97.96618374429083 2013 84.91531191951715 2014 56.95419982176172 2015 62.23480780271522 2016 63.86934098269891 2017 67.01226435707547 2018 69.05892372455739 2019 63.3111950654159 2020 58.17095433448384