Year % of GDP 1994 3.4116910002052983 1995 3.916754622849336 1996 12.34772082452547 1997 17.511138021278672 1998 11.313713073661278 1999 10.554382775077226 2000 12.403238352114752 2001 13.56093960210577 2002 30.307844995751854 2003 17.374967249085852 2004 26.182269242623057 2005 28.69071631513844 2006 58.47714315976419 2007 118.37968968684703 2008 39.58548353587463 2009 42.869356816792084 2010 43.503897910825856 2011 35.9366546705495 2013 36.054772636217685 2014 33.68140998533393 2015 36.09889747603095 2016 38.26467069216113 2017 40.41869638659066 2018 33.3540055410825 2019 36.300778704605754 2020 38.18188473491836 2021 30.14796966812323 2022 26.85593986341522