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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%