Table schema:
CREATE TABLE table_name_76 (staying_councillors INTEGER, new_council VARCHAR, election_result VARCHAR, party VARCHAR)

Question: What is the mean amount of staying councilors with an election result amounting to less than 10 with the Green party, and a new council bigger than 0?
SQL: SELECT AVG(staying_councillors) FROM table_name_76 WHERE election_result < 10 AND party = "green" AND new_council > 0