user: Question: What is the sum of Year, when Result is 9th?
Columns: ['Year', 'Tournament', 'Venue', 'Result', 'Extra']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2007.0, 'European U23 Championships', 'Debrecen , Hungary', '2nd', 'Heptathlon']
SQL:

assistant: SELECT SUM("Year") FROM "Table" WHERE "Result" = '9th';