Year % of GDP 1982 2.11234998703003 1983 2.30205988883972 1984 2.11203002929688 1985 2.33756995201111 1986 2.13794994354248 1993 2.35420989990234 1996 2.77462005615234 1997 2.75794005393982 2000 3.98310995101929 2001 3.7002899646759 2002 3.63245010375977 2006 5.49096012115479 2007 5.45112991333008 2008 5.40819978713989 2009 4.42207002639771 2010 4.49659013748169 2011 5.48576021194458 2012 5.56678009033203 2013 4.4985499382019 2014 4.60201978683472 2015 5.15299987792969 2016 5.06199979782104 2017 5.49900007247925 2018 5.21999979019165 2019 4.48099994659424 2020 4.09100008010864 2021 4.06500005722046 2022 3.73600006103516