Year % of GDP 1993 0.0003701919265226964 1994 0.3182090213897817 1997 6.907808074820523 1998 7.341917725652615 1999 2.93925854428705 2000 4.299844280899041 2001 3.412732517059834 2002 4.723488852005238 2003 8.390361666164022 2004 9.613616231295543 2005 7.067750867353016 2006 15.124036167290075 2007 18.599300188189936 2008 12.522190561944901 2009 6.137325077460394 2010 7.4106593141578125 2011 7.56100540937968 2012 5.730873272775275 2013 5.974326402988376 2014 10.224187342905608 2015 11.398649204602412 2016 10.746989399988 2017 11.71836764917465 2018 7.284019765869551 2019 7.847548381376471 2020 3.4743866907938847 2021 6.779088868783792 2022 8.53102325581886