What was the tonnage on 30 march 1943?
CREATE TABLE table_name_78 (tonnage INTEGER, date VARCHAR)
SELECT AVG(tonnage) FROM table_name_78 WHERE date = "30 march 1943"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_78 (tonnage INTEGER, date VARCHAR) Question: What was the tonnage on 30 march 1943? [/INST] SELECT AVG(tonnage) FROM table_name_78 WHERE date = "30 march 1943" </s>