Year % of GDP 1996 1.27155995368958 1997 1.2427099943161 1998 1.20800995826721 1999 1.15140998363495 2000 1.08382999897003 2001 1.05193996429443 2002 1.05575001239777 2003 1.12434995174408 2004 1.1777800321579 2005 1.19196999073029 2006 1.19886994361877 2007 1.23407995700836 2008 1.39126002788544 2009 1.61371004581451 2010 1.5947699546814 2011 1.55262005329132 2012 1.55675005912781 2013 1.56757998466492 2014 1.52098000049591 2015 1.18211996555328 2016 1.17507004737854 2017 1.25187003612518 2018 1.16719996929169 2019 1.22527003288269 2020 1.2325199842453 2021 1.13092994689941