1980 2.746802 0.364060 9.0330% 1979 9.949504 0.100508 8.8650% 1978 0.509409 1.963059 7.2813% 1977 9.094431 0.109957 6.6558% 1976 9.418359 0.106176 6.4073% 1975 6.976549 0.143337 9.8159% 1974 0.380997 2.624691 9.0909% 1973 0.363217 2.753172 6.4509% 1972 1.328590 0.752678 4.7304% 1971 1.688218 0.592341 5.7132% 1970 0.446812 2.238078 5.5272% 1969 2.601331 0.384419 5.5714% 1968 4.435325 0.225463 5.0148% 1967 4.223525
recognition