Page 156.
Number of female employee in personnel of confidence is 1071+2832+245 = 4148.
Number of female employee in operating personnel is 2608+2862+503 = 5973.
Total number of female employee in skilled (non-management) positions is 10212.
Number of male employee in personnel of confidence is 1203+4360+833 = 6396.
Number of male employee in operating personnel is 3821+5528+1554 = 10903.
Total number of male employee in skilled (non-management) positions is 6393+10903 = 17299.
Percentage of skilled (non-management) positions is filled by women = 10212 / (10212+17299) = 37.119%