According to the tabular data presented, what category had the highest median earnings for men in 1969?

For example, the 1959 peak median earnings for salaried managers in compared to $5,748 for self-employed managers in retail trade (Appendix A: Table A. 3), is an 18-category system in which no major occupational group has more than, the 1959 and 1969 peak median earnings of all white males