how much should be the oil pressure in '00 Express?

I have a Chevy Express 5.7 L G1500 Conversion Van with 90500 miles on it.I am just curious, how much should be the reading for Oil Pressure?
Mine reads about 60-65 when cold and around 50 when hot.That seems like little higher than the readings when I brought it new.Any sugestions?

Those reading sound perfect. Thats what a healthy engine sits at. Usually 55-65 when cold and 40-50 or so when warm.. It good to have higher oil pressure because the engines runs better. to low and major engine problems can occur. Happy New Year