Year % GDP 1960 20.772883672587835 1961 20.831163089591062 1962 21.285697509931225 1963 20.18627957544945 1964 19.383978454436892 1965 18.52411199245269 1966 17.401774066986782 1967 18.083421992924933 1968 17.25701366094911 1969 14.217844477250882 1970 15.787468575416428 1971 15.187739258996913 1972 14.54982610065177 1973 13.283707727235308 1974 12.62355277196391 1975 14.66341058846843 1976 15.003069621149702 1977 14.732060633928166 1978 15.002453310336133 1981 15.00369332365527 1982 17.37120201857695 1983 18.78710397026492 1984 19.831496325460243 1985 20.868732329318718 1986 23.250166521728268 1987 23.211722020988184 1988 22.287536108618507 1989 21.911713664973423 1990 20.82348200531144 1991 21.932757127984594 1992 23.4755897468613 1993 25.273529711494575 1994 25.654796985147136 1995 26.777748106045223 1996 25.11959126111103 1997 20.413109561726777 1998 21.85532305105438 1999 22.581193783046313 2000 23.62796649217938 2001 19.90898178666388 2002 20.92760441735495 2003 21.389434882006327 2004 20.954702809983072 2005 19.688254636203336 2006 18.137155742133725 2007 16.9416210700662 2008 17.757508516582114 2009 24.161710846167445 2010 27.104819315682587 2011 31.23768700078284 2012 33.79252359311653 2013 32.226492818827325 2014 33.13078194837012 2015 33.79643488011166 2016 37.912475314008844 2017 38.43118907735428 2018 37.757473374342965 2019 39.544288552802165 2020 48.049523873858455 2021 51.1710645596666 2022 44.14358113040896 2023 45.062162253543576