Default Values in Custom Field

I have created a custom field which is a pick list. I have noticed that when I import new contacts it automatically sets the top value as the default value in for every contact.

I do not want this as the default value and I cannot seem to rearrange the pick list options to put a correct default value at the top of the list.

Is there a way to do this without deleting all my pick list options and entering them again in a different order?

Thanks