내부 거래 금액이 가장 많은 업종은 전문 서비스업(총수 일가 지분율 평균 33.5%)으로 규모는 1.9조 원이며, 내부 거래 비중 54.1%다.
The industry with the largest amount of insider transactions is the professional service industry (average ownership ratio of the total head family is 33.5%), with a size of 1.9 trillion won and the proportion of insider transactions accounting for 54.1%.