Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
with delivery date of 2001 2001 what is gross tonnage?

### Inputs:
table_name: table, columns: ['Type', 'Owns', 'Length', 'Delivery Date', 'Gross Tonnage']

### Response:
SELECT AVG Gross Tonnage FROM table WHERE Delivery Date = 2001 2001