Attachment
TABLE NO. 1
UNITED STATES AND UNITED KINGDOM NUCLEAR EVENTS
(Yield in Kilotons)
Total Fission Yield
Year
Total Fission
Yield
1945
60
1946
40
1948
100
1951
500
1952-1954
37,000
from Events, the
Total Yield of which
was 1 MT or greater
36,000
1955
200
1956
9,000
8,000
19,000
14,000
1957-1958
TABLE NO. 1
.