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.
['6725', '5795', '2187', 'A', '6927', 's', '935', 'g', '1687', '2317', '5407', '1717', 'i', '3539', '4349', '8317', 'R', 'W', '6139', '7051', '8005', 'Z', '9161']