The average high temperatures in degrees for a city are listed.

58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57

If a value of 60° is added to the data, how does the median change?

The median stays at 80°.
The median stays at 79.5°.
The median decreases to 77°.
The median decreases to 82°.