Table: athletics_results_8
Columns: year
competition
venue
position
notes

Question: What is the average year in which the finish position was 13th?
SQL: SELECT AVG("year") FROM athletics_results_8 WHERE "position" = '13th'

Question: What is the average year for the Olympic Games?
SQL: SELECT AVG("year") FROM athletics_results_8 WHERE "competition" = 'olympic games'