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.
['f', '6631', '1125', 'r', '2801', 'I', '8725', '8491', 'W', 'k', 'A', 'S', '8791']