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.
['6577', '7163', 'k', '8041', 'N', '633', '4451', 'V', 't', 't', 'e', 'a', 'l', '1487', '7341', 'L', 'z', '8193', '7807', 'I', '463', '1321', '91']