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.
['7437', 'Y', '1699', 'D', '7839', '4285', 's', 'k', '4475', 'b', '8427', 'm', 'e', 'B', 'n', '8419', '6597', '5151', '969', 'l', 'f', '9753', '9411', 'U', '571', 'm', 'C', 'd', 'b', '443', '5803', '9923', 'z', 'P', 'a', 'Z']