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

### Instruction:
What is the 1998 value if the 2011 value is 30.4?

### Inputs:
table_name: table, columns: ['1998', '2000', '2004', '2007', '2011']

### Response:
SELECT 1998 FROM table WHERE 2011 = 30.4