Table 6. Cumulative population estimated exposure for the 17 events that contributed more than 1000 person-R, 1951-1958. Population estimated Event? Date HARRY BEE SMOKY ANNIE EASY DIABLO 530519 550322 _ 570831 530317 520507 570715 30,000 11,000 7,500 3,700 2,700 2,700 SHASTA 570818 2,600 ZUCCHINI 550515 2,300 SIMON §30425 2,200 BADGER 530418. 2,100 NANCY 530324 1,800 FOX 520525 1,800 APPLE II exposure, person-R 550505 1,700 1958 1,500 KEPLER 570724 1,500 WHITNEY 570923 1,300 MET 550415 1,200 HARDTACK II Series Total 77,000 arf we include 1600 person-R at Reno, NV, the total for event BOLTZMANN would be 2200 person-R. This event would then rank tenth in the above tabulation. 232

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