in this instance it was symbolical--a

1992 0.533908 1.872981 4% Est. 1989 3.342168 0.299207 3.8744% 1988 16.846341 0.059360 3.3218% 1987 4.532762 0.220616 3.1640% 1986 15.589436 0.064146 2.6144% 1985 3.811038 0.262396 2.9715% 1984 14.359266 0.069641 3.6576% 1983 7.316862 0.136671 3.8998% 1982 3.134833 0.318996 6.3831% 1981 4.845245 0.206388 9.6843% 1980 4.417446 0.226375 9.0330% 1979 10.342430 0.096689 8.8650% 1978 4.569688 0.218833 7.2813% 1977 5.341090 0.187228 6.6558% 1976 1.356982 0.736929 6.4073% 1975 3.901403 0.256318 9.8159% 1974 4.060158 0.246296 9.0909% 1973 1.666664 0.600001 6.4509% 1972 0.204920 4.879959 4.7304% 1971 3.020417 0.331080 5.7132% 1970 3.684166 0.271432 5.5272% 1969 4.974911 0.201009 5.5714% 1968 2.564646 0.389917 5.0148% 1967 5.358441 0.186621 2.5719% 1966 4.430365 0.225715 3.5485% 1965 2.315146 0.431938 2.7360% 1964 4.506982 0.221878 1.5423% 1963 0.412216 2.425914 1.5697% 1962 0.216412 4.620807 2.2421% 1961 0.274166 3.647419 0.9709% 1960 4.291446 0.233022 1.6442% 1959 1.986939 0.503287 2.3579% 1958 3.712382 0.269369 2.0623% 1957 0.655403 1.525778 3.5571% 1956 1.195756 0.836291 3.3098% 1955 0.184529 5.419200 3.4226% 1954 0.626182 1.596980 1.5421% 1953 0.182741 5.472220 1.5703% 1952 0.131463 7.606712 1.5948% 1951 1.640498 0.609571 5.0183% 1950 0.162143 6.167377 1.7034% 1949 0.085120 11.748145 -0.4250% 1948 0.592965 1.686440 6.7886% 1947 2.728513 0.366500 13.9149% 1946 2.621648 0.381439 22.7896% 1945 0.075309 13.278632 3.2661% 1944 0.085314 11.721352 -13.0688% 1919 2.627022 0.380659 15.7925% 1918 0.476486 2.098696 14.2845% 1917

spryly