user: Question: What's the average of all years tournaments were hosted in doha, qatar?
Columns: ['Year', 'Tournament', 'Venue', 'Result', 'Extra']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2002.0, 'World Junior Championships', 'Kingston , Jamaica', '3rd', '4x100 m relay']
SQL:

assistant: SELECT AVG("Year") FROM "Table" WHERE "Venue" = 'doha, qatar';