"Figure 31: Exports of services, Blue Book 2016 compared with Blue Book 2015, 1997=100, chained volume measure, seasonally adjusted","" "","" "","" "Notes","" "Unit","Index" "","" "","Blue Book 2016","Blue Book 2015" "1948","11.9","11.9" "1949","13.2","13.2" "1950","15.1","15.1" "1951","15.0","15.0" "1952","14.7","14.7" "1953","15.3","15.3" "1954","16.3","16.3" "1955","16.5","16.5" "1956","16.4","16.4" "1957","17.4","17.4" "1958","17.9","17.9" "1959","18.5","18.5" "1960","20.0","20.0" "1961","20.8","20.7" "1962","21.1","21.0" "1963","21.1","21.1" "1964","21.8","21.8" "1965","22.0","22.0" "1966","23.9","23.9" "1967","25.2","25.2" "1968","27.7","27.6" "1969","30.5","30.5" "1970","33.1","33.0" "1971","36.3","36.2" "1972","38.1","38.0" "1973","42.2","42.1" "1974","45.9","45.8" "1975","46.6","46.5" "1976","50.0","49.9" "1977","52.0","51.9" "1978","52.2","52.1" "1979","53.2","53.1" "1980","51.2","51.1" "1981","51.7","51.6" "1982","49.9","49.8" "1983","50.7","50.6" "1984","52.1","52.0" "1985","55.7","55.6" "1986","57.7","57.6" "1987","62.2","62.2" "1988","61.3","61.2" "1989","62.8","62.7" "1990","65.0","65.0" "1991","63.5","63.4" "1992","70.0","69.9" "1993","74.5","74.5" "1994","80.1","80.0" "1995","86.8","86.7" "1996","92.6","92.5" "1997","100.0","100.0"