Year % GDP 1970 4.837664238941254 1971 5.145578211829476 1972 7.508787532358979 1973 5.6282381355424365 1974 7.154774709301358 1975 6.6024321022159205 1976 8.73816518836267 1977 9.255828946680893 1978 12.273338304572324 1979 10.623799722230345 1980 9.803696612442153 1981 9.806828896638867 1982 9.67947583513323 1983 9.197474474382627 1984 9.363956120254773 1985 10.433938119617016 1986 11.790028498107215 1987 13.765922780893591 1988 14.446352142399446 1989 15.18015130650813 1990 20.247389288335768 1991 20.985038155973395 1992 21.73424634945272 1993 23.778767657833804 1994 13.468723532905596 1995 17.508628906066694 1996 18.692071459721827 1997 19.860176491518917 1998 22.31675444733908 1999 25.391993797359625 2000 28.337467527831162 2001 29.21186265263524 2002 30.118388671316094 2003 30.166656878550956 2004 30.786085279876275 2005 34.053099651552735 2006 38.92789466475692 2007 37.83122923658879 2008 36.66974555968355 2009 36.41935250817352 2010 38.11399564720638 2011 39.63397420702414 2012 40.29459111913069 2013 40.05864389584372 2014 43.26459510571541 2015 42.59501844561316 2016 44.95065212565049 2017 45.59652186857971 2018 47.64968378947664 2019 48.03562110328286 2020 49.74932069694925 2021 54.20700301744209 2022 53.49403739463197 2023 44.570182670928894