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

### Instruction:
What is the last year that Howard A. Wassum was in the 5th district?

### Inputs:
table_name: table, columns: ['Year', '1st District', '2nd District', '3rd District', '4th District', '5th District']

### Response:
SELECT MAX Year FROM table WHERE 5th District = Howard A. Wassum