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.
['6221', '1', '5277', '9529', '6743', 'f', '7657', 'r', '517', '6173', 'L', 'H', 'm', 'z', '1217', 'O', 'M', '8905']