user: Question: How many division titles are there when the win pc is .558?
Columns: ['Team', 'Games', 'Wins', 'Losses', 'Ties', 'Win Pct.', 'Playoff berths', 'Division titles', 'Postseason record', 'Super Bowl record']
Types: ['text', 'real', 'real', 'real', 'real', 'text', 'real', 'real', 'text', 'text']
Sample row: ['Dallas Cowboys', 754.0, 434.0, 314.0, 6.0, '.580', 30.0, 20.0, '33-25', '5-3']
SQL:

assistant: SELECT SUM("Division titles") FROM "Table" WHERE "Win Pct." = '.558';