Year % of GDP 1990 26.059026973026867 1991 23.41001950871986 1992 26.53968930345626 1993 26.840877904893844 1994 23.871191969430182 1995 24.242790130438152 1996 22.85667337194069 1997 22.859528284293372 1998 22.452719904500203 1999 20.008225055952717 2000 22.62571465174097 2001 19.886104941811798 2002 21.70957078347256 2003 22.83251639579739 2004 25.055055385700857 2005 26.518280766431207 2006 28.523475312423365 2007 28.748047908808967 2008 28.458055731834826 2009 23.75692733132691 2010 25.7162642612348 2011 27.823820350824093 2012 26.584983299537008 2013 27.08748745829147 2014 26.877045821585998 2015 27.00199810510231 2016 26.96516471982025 2017 28.314418378425053 2018 27.400014022110362 2019 24.962083179817665 2020 27.452549592385942 2021 27.491323511696862 2022 28.889280462127875 2023 26.544529831478364