Investors & landlords

I rented a room out of my home from Aug-Dec in 2019. I'm on a screen that says "Enter Common Expenses" and it lists things like "Advertising, Travel, Cleaning, etc." There is a box that says "Utilities." Do I enter all my utilities expenses for 2019, all utilities expenses for aug-Dec, or just 50% for my roommate (or some such calculation based on what she used)? What about the boxes for insurance and real estate taxes?