user: Question: How many sales took place with a peak of 1 for boris?
Columns: ['Pos.', 'Artist', 'Single', 'Year', 'Sales', 'Peak']
Types: ['real', 'text', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Daniel Lavoie , Patrick Fiori & Garou', '" Belle "', 1998.0, 2221000.0, 1.0]
SQL:

assistant: SELECT COUNT("Sales") FROM "Table" WHERE "Peak" = 1.0 AND "Artist" = 'boris';