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

### Instruction:
What is the lowest 1971 number of the Macedonian population with a 2002 value greater than 133 and a 1991 value less than 171?

### Inputs:
table_name: table, columns: ['Macedonian population in Vojvodina', '1961', 'Number 1971', '1981', '1991', '2002']

### Response:
SELECT MIN Number 1971 FROM table WHERE 2002 > 133 AND 1991 < 171