[BenLurkin]

52 U.S. submarines lost during World War II

[central_va]

The Krauts had it way worse:

In terms of crew deaths, it lists them as follows 
(boat losses do not include scuttled boats in this breakdown):

1939 : 9 boats sunk and 204 sailors killed (148 survivors)
1940 : 24 boats sunk and 643 sailors killed (331 survivors)
1941 : 34 boats sunk and 887 sailors killed (645 survivors)
1942 : 85 boats sunk and 3,277 sailors killed (818 survivors)
1943 : 235 boats sunk and 10,081 sailors killed (1,826 survivors)
1944 : 217 boats sunk and 7,999 sailors killed (2,365 survivors)
1945 : 120 boats sunk and 3,806 sailors killed (440 survivors)