In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.
['z', '7633', 'a', '7013', 't', 'J', 'o', '3545', '2223', '7449', 'i', '4485', 's', 'O', '6177', '1125', 'U']