user: Question: what year did David Whitfield win
Columns: ['Position', 'Artist', 'Single', 'Year', 'Weeks']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1st', 'Frankie Laine', '" I Believe "*', '1953', '18 weeks']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Artist" = 'David Whitfield';