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.
['w', '4237', '2589', '8473', 'V', '3115', 'z', 'f', '3281', 'W', '8935', '4615', 'U', '275', 'A', 'V', 'B', '2937', 'f']