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.
['a', '6557', 'a', 'z', 'Z', '4801', 'h', '9667', 'f', 'T', '8343', '8705', 'O', '3649', '3215', '5769', '409', '5625']