In 1998

"The average age of ECUSA priests is 59.7. The average age of priests not retired is 55.4. Five thousand, three hundred eighty-seven (32.7%) of the priests are 66 or older. The average age of all priests 65 or younger is 52.6. Three hundred twenty (1.9%) of all priests are 35 or younger."

That's out of around 14K priests.