Complex sentence: By 1953 temporary seating had brought the capacity up to 25,000 and in 1961 the stadium was expanded to hold 46,000 and in 1981 it underwent an expansion that brought total capacity to 62,512, although subsequent renovations dropped the current seating to the official 60,492 seats.
Split into simpler sentences: By 1953 temporary seating had brought the capacity up to 25,000 and in 1961 the stadium was expanded to hold 46,000. Then in 1981 it underwent an expansion that brought total capacity to 62,512, although subsequent renovations dropped the current seating to the official 60,492 seats.