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.
['8305', 'S', '2185', 'u', '7599', '187', '4837', '4275', '6403', 'D', 'H', 'S', 'k', '5073', '6695', '2131', 'G', '781']