user: Question: How many viewers in millions for episode number 38?
Columns: ['No.', '#', 'Title', 'Director', 'Writer(s)', 'Original air date', 'Prod. code', 'U.S. viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [22.0, 1.0, '"Sadie, Sadie"', 'Amy Sherman-Palladino', 'Amy Sherman-Palladino', 'October9,2001', 227451.0, '5.0']
SQL:

assistant: SELECT "U.S. viewers (million)" FROM "Table" WHERE "No." = 38.0;