user: Question: How many goals were achieved when chievo was the club and the debut year was before 2002?
Columns: ['Rank', 'All-time Rank', 'Name', 'Debut Year', 'Current Club', 'Goals', 'Apps']
Types: ['real', 'text', 'text', 'real', 'text', 'real', 'real']
Sample row: [1.0, '2', 'Francesco Totti', 1992.0, 'Roma', 230.0, 543.0]
SQL:

assistant: SELECT SUM("Goals") FROM "Table" WHERE "Current Club" = 'chievo' AND "Debut Year" < 2002.0;