Duties:
Cooking: Prepare one meal each day. Cleaning: Keep house in order. Vacuum and dust 1-2 per week, wipe down kitchen and bathroom daily. Laundry: 2-3 times per week.
Think you missed a couple of things.
You forgot calling kids' schools/coaches/doctors for various things, shopping for household supplies, getting estimates from contractors for the roof, driving, driving, driving, sorting & prioritizing mail, banking and bill paying, reviewing and updating family's investment portfolio, managing family social calendar, yard work and landscaping.
Oh yeah, many more women than men are volunteering in church, school and community activities. Count those hours in.
Now try doing all that and then add in the part-time or full time job!