Year % of GDP 1996 1.9683446396675126 1997 1.966381429549887 1998 1.9722947643259128 1999 2.0477472415278246 2000 2.046546814370737 2001 2.064021370537047 2002 2.028778591422523 2003 2.0185027566157494 2004 1.9703535371368006 2005 1.9515013072940164 2006 1.9640222410845511 2007 1.9303686857425206 2008 1.9833733372926072 2009 2.021082233627793 2010 2.006689265928406 2011 1.9903472750626 2012 2.021297287924152 2013 1.983458469642718 2014 2.092572031418017 2015 2.121215520169391 2016 2.168061103587859 2017 2.1605053902450155 2018 2.2364003585297887 2019 2.301312300029009 2020 2.494921883410385 2021 2.615552207304581