Year % of GDP 1980 4.613287397089095 1981 4.745095460642423 1982 4.804409243636644 1983 4.804409162720191 1984 4.756365215034743 1985 4.895883444595843 1986 8.557637013489463 1987 14.480266194185543 1988 11.699006576255588 1989 14.629426343581919 1990 9.753781598834209 1991 12.30339857102501 1992 10.282316877648807 1993 11.786805682825822 1994 8.899744230401406 1995 6.316935278182194 1996 6.480190934981718 1997 6.591147108425444 1998 7.215649300202279 1999 6.903468628753862 2000 7.629120286607795 2001 7.911612025650279 2002 5.988484742688285 2003 9.035251603127303 2004 9.919224667168288 2005 12.60389142445352 2006 11.645731317862465 2007 13.100518757988123 2008 13.37822111388196 2009 12.79127111330292 2010 17.944222007455473 2011 15.019373885232795 2012 16.004588471465443 2013 15.598675172259554 2014 13.923433804046578 2015 15.973221789657737 2016 15.896902703294296 2017 18.13366917397005 2018 17.31363498377066 2019 20.433731298171377 2020 18.80954268051042 2021 18.79344466070231 2022 24.40486907511057