CREATE TABLE table_name_76 (staying_councillors INTEGER, new_council VARCHAR(255), election_result VARCHAR(255), party VARCHAR(255))
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