Table:
Name | Date | Nation | Displacement | Speed | Number | Notes
River-class frigates | 1942 | UK | 1,370 tons | 20 knots | 151 | 
Type A kaibōkan | 1943 | Japan | 870 tons | 19 knots | 18 | 
FMR-class | 1943 | US | 1,200 tons | 21 knots | 85 | 
GMT-class | 1943 | US | 1,140 tons | 21 knots | 72 | 
TE-class | 1943 | US | 1,400 tons | 23 knots | 102 | 
DET-class | 1943 | US | 1,240 tons | 21 knots | 72 | 
Tacoma-class frigate | 1943 | US | 1,430 tons | 20 knots | 96 | 
Type B kaibōkan | 1943 | Japan | 940 tons | 19 knots | 37 | 
Loch-class frigates | 1944 | UK | 1,435 tons | 20 knots | 30 | 
WGT-class | 1944 | US | 1,350 tons | 24 knots | 87 | 
TEV-class | 1944 | US | 1,450 tons | 24 knots | 22 | 
Bay-class frigates | 1945 | UK | 1,580 tons | 20 knots | 26 | anti-aircraft
Dealey-class | 1954 | US | 1,450 tons | 25 knots | 13 | 
Type E50 frigate | 1955 | France | 1,290 tons | 28 knots | 4 | fast
Type 14 frigate | 1955 | UK | 1,180 tons | 24 knots | 8 | anti-submarine
St. Laurent-class | 1955 | Canada | 2,263 tons | 28 knots | 7 | anti-submarine
Type B | 1956 | Japan | 1,070 tons | 25 knots | 2 | diesel
Type 12 frigate | 1956 | UK | 2,150 tons | 31 knots | 6 | anti-submarine
Type E52 frigate | 1956 | France | 1,295 tons | 28 knots | 14 | fast
Almirante Clemente-class light destroyer | 1956 | Venezuela | 1,300 tons | 32 knots | 6 | fast
Type 61 frigate | 1957 | UK | 2,170 tons | 24 knots | 4 | aircraft direction
Canopo-class frigate | 1957 | Italy | 1,807 tons | 26 knots | 4 | 
Type 41 frigate | 1957 | UK | 2,300 tons | 24 knots | 4 | anti-aircraft
Azopardo-class frigate | 1957 | Argentina | 1,160 tons | 20 knots | 2 | 
Restigouche-class | 1958 | Canada | 2,366 tons | 28 knots | 7 | anti-submarine
Claud Jones-class | 1959 | US | 1,450 tons | 22 knots | 4 | 
Type 12M frigate | 1960 | UK | 2,380 tons | 30 knots | 12 | anti-submarine
Köln-class frigate | 1961 | Germany | 2,100 tons | 30 knots | 6 | fast
River-class | 1961 | Australia | 2,100 tons | 30 knots | 6 | 
River-class | 1961 | Japan | 1,490 tons | 25 knots | 4 | 
Type 81 frigate | 1961 | UK | 2,300 tons | 28 knots | 7 | general purpose
Bergamini-class frigate | 1961 | Italy | 1,410 tons | 26 knots | 4 | 
Commandant Rivière-class frigate | 1962 | France | 1,750 tons | 25 knots | 13 | dual purpose
Mackenzie-class | 1962 | Canada | 2,366 tons | 28 knots | 4 | anti-submarine
Hvidbjørnen-class frigate | 1962 | Denmark | 1,345 tons | 18 knots | 4 | fishery protection
Type 12I frigate | 1963 | UK | 2,450 tons | 30 knots | 26 | general purpose
Bronstein-class | 1963 | US | 2,360 tons | 26 knots | 2 | 
Garcia-class | 1964 | US | 2,620 tons | 27 knots | 10 | 
Oslo-class frigate | 1966 | Norway | 1,450 tons | 25 knots | 5 | 
Brooke-class | 1966 | US | 2,640 tons | 27 knots | 6 | guided missile
Peder Skram-class frigate | 1966 | Denmark | 2,030 tons | 28 knots | 2 | fast
Van Speijk-class frigate | 1967 | Netherlands | 2,200 tons | 28 knots | 6 | 
Alpino-class frigate | 1968 | Italy | 2,000 tons | 28 knots | 2 | 
Alvand-class frigate | 1968 | Iran | 1,110 tons | 40 knots | 4 | 
Knox-class | 1969 | US | 3,011 tons | 27 knots | 46 | 
Chikugo-class | 1971 | Japan | 1,470 tons | 25 knots | 11 |

Question: how many tons does the te-class displace?
Answer: 1,400 tons

Question: how many tons of displacement does type b have?
Answer: 940 tons

Question: in 1968 italy used alpino-class frigate. what was its top speed?
Answer: 28 knots

Question: what is the difference in speed for the gmt-class and the te-class?
Answer: 2 knots

Question: how many consecutive escorts were in 1943?
Answer: 7

Question: which of the boats listed is the fastest?
Answer: Alvand-class frigate

Question: what is the top speed?
Answer: 40 knots

Question: which name has the largest displacement?
Answer: Knox-class