CREATE TABLE table_name_75 (total INTEGER, nation VARCHAR(255), gold VARCHAR(255), bronze VARCHAR(255), silver VARCHAR(255))
What is the average Total, when Bronze is greater than 0, when Silver is greater than 0, when Gold is greater than 2, and when Nation is Soviet Union?
    
SQL: SELECT AVG(total) FROM table_name_75 WHERE bronze > 0 AND silver > 0 AND gold > 2 AND nation = "soviet union"