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.
['5503', '1297', '7851', '5021', '6235', 'z', '8619', 'J', 'J', '3657', '8347', '7165', '6861', '7157', '9725', '4799']