user: Question: How many home losses occured when PF 13?
Columns: ['Num', 'Team', 'W', 'L', 'PCT', 'PF', 'PA', 'Last appearance', 'Last championship', 'HOME games', 'Home wins', 'Home losses', 'Home Win Pct.', 'ROAD games', 'Road wins', 'Road losses', 'Road Win Pct.']
Types: ['real', 'text', 'real', 'real', 'text', 'real', 'real', 'real', 'text', 'real', 'real', 'real', 'text', 'real', 'real', 'real', 'text']
Sample row: [15.0, 'Pittsburgh Steelers', 8.0, 7.0, '.533', 332.0, 303.0, 2010.0, '2010', 11.0, 6.0, 5.0, '.545', 4.0, 2.0, 2.0, '.500']
SQL:

assistant: SELECT SUM("Home losses") FROM "Table" WHERE "PF" = 13.0;