Pre-war & post-war frigate strength, 1939-1958

World navies comparative frigate strengths from 1939 to 1958.

Year	USN	RN	Fr	Ne	USSR
1939		43	46		5
1941					22
1945	482	598	35	6	48
1948	13
1950	11
1951		36	44	16
1952	89
1954		33
1955					60
1957	71	26	61
1952				18

Source: Friedman, Norman. The Postwar Naval Revolution. Annapolis, MD: Naval Institute Press, 1986.