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.
['r', '7485', '3437', '3861', '749', '4131', '495', 'P', 'i', '1499', '6985', 'a', 'K', '6757', '8425', '8791', '4337']