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.
['6731', '3837', '21', '2861', '5981', 'e', 'L', 'm', 'B', '767', '8553', '7237', '9185', '9185', '31', 'M', '7173', '4761']