user: Question: What is the sum of winners when 1983 is the years won?
Columns: ['Team', 'Winners', 'Runners-up', 'Years won', 'Years runners-up']
Types: ['text', 'real', 'real', 'text', 'text']
Sample row: ['Milan', 5.0, 2.0, '1989 , 1990 , 1994 , 2003 , 2007', '1973 , 1993']
SQL:

assistant: SELECT SUM("Winners") FROM "Table" WHERE "Years won" = '1983';