In a study done by the Joint Chiefs of Staff in April 1945, the figures of 7.45 casualties per 1,000 man-days and 1.78 fatalities per 1,000 man-days were developed.
I en undersøgelse foretaget af Joint Chiefs of Staff i april, var tallene på 7,45 tab/1.000 manddage og 1,78 dræbte/1.000 manddage blevet udregnet.