Table: 1989 australian drivers' championship
[['circuit', 'city / state', 'date', 'winner', 'team'], ['mallala motor sport park', 'mallala , south australia', '7 may', 'mark mclaughlin', 'elfin sports cars'], ['mallala motor sport park', 'mallala , south australia', '7 may', 'rohan onslow', 'rjmacarthur onslow'], ['winton motor raceway', 'benalla , victoria', '4 june', 'rohan onslow', 'rjmacarthur onslow'], ['winton motor raceway', 'benalla , victoria', '4 june', 'john briggs', 'john briggs'], ['oran park raceway', 'sydney , new south wales', '4 august', 'rohan onslow', 'rjmacarthur onslow'], ['oran park raceway', 'sydney , new south wales', '4 august', 'rohan onslow', 'rjmacarthur onslow'], ['amaroo park', 'sydney , new south wales', '20 august', 'neil crompton', 'boylan racing'], ['amaroo park', 'sydney , new south wales', '20 august', 'simon kane', 'clive kane photography'], ['sandown international raceway', 'melbourne , victoria', '9 october', 'sam astuti', 'cascone corporation'], ['sandown international raceway', 'melbourne , victoria', '9 october', 'neil crompton', 'boylan racing']]
Statement: out of the 10 listed race , Rohan Onslow won 4 of the race
Statement: the month of August had the highest number of race
Statement: other than Rohan Onslow , Neil Crompton is the only other driver to win multiple race
Statement: out of the race during this time period , the Sydney , New South Wale location had the highest number of race
Statement: the syndey , New South Wale location is the only location to have 2 different Circuit