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

### Instruction:
Tell me the total number of years for wins less than 2 and class of 50cc with points of 15

### Inputs:
table_name: table, columns: ['Year', 'Class', 'Team', 'Points', 'Rank', 'Wins']

### Response:
SELECT COUNT Year FROM table WHERE Wins < 2 AND Class = 50cc AND Points = 15