user: Question: What was the earliest year in which Long jump was performed in the World Indoor Championships in 5th position?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Performance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1983.0, 'Mediterranean Games', 'Casablanca , Morocco', '3rd', 'Long jump']
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "Performance" = 'Long jump' AND "Competition" = 'World Indoor Championships' AND "Position" = '5th';