1981 7.067709 0.141489 9.6843% 1980 4.869298 0.205368 9.0330% 1979 5.275338 0.189561 8.8650% 1978 1.217530 0.821335 7.2813% 1977 1.515764 0.659733 6.6558% 1976 2.474506 0.404121 6.4073% 1975 5.156716 0.193922 9.8159% 1974 0.428570 2.333344 9.0908% 12.3 11.0 1973 0.392856 2.545462 6.4509% 1972 0.315465 3.169929 4.7304% 1971 0.228899 4.368733 5.7132% 1970
tasseling