Headlight Low/High beam question for 92 Lebaron Conv.

I just recently got a 1992 Lebaron convertible. In my looking the car over, I noticed that when the headlight are on low beam, just the two outer lights are on, but when I switch on the high beams, both inner lights come on, but one of the outer light turn off. Not knowing this car much at all yet, i'm wanting to know if the outer low beam lights are suppose to stay on or turn off when the highs are on.