German submarine U-9 (1935)
Ships attacked
Table:
Date

Name

Nationality

Tonnage[Note 1]

Fate[4]

18 January 1940

Flandria

Sweden

1,179

Sunk

19 January 1940

Patria

Sweden

1,188

Sunk

11 February 1940

Linda

Estonia

1,213

Sunk

20 April 1940

ORP Błyskawica

Polish Navy

1,975

torpedo misfired, ship survived

4 May 1940

San Tiburcio

United Kingdom

5,995

Sunk (mine)

9 May 1940

Doris

French Navy

552

Sunk

11 May 1940

Tringa

United Kingdom

1,930

Sunk

11 May 1940

Viiu

Estonia

1,908

Sunk

23 May 1940

Sigurd Faulbaum

Belgium

3,256

Sunk

11 May 1944

Shtorm

Soviet Union

412

Damaged

Using the information in the given table titled German submarine U-9 (1935) in the "Ships attacked" section, give a short sentence answer to: How many total tons has U-9 sunk or damaged? Respond with the correct answer in JSON format as {"answer": "YOUR ANSWER"}.

answer: U-9 sank eight ships totalling 17,221 gross register tons (GRT) and damaging 412 tons.