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.
['2383', 'G', 'z', 't', 'X', '6905', 'S', '6555', '9937', 'R', 'k', 'a', 'h', 'R', 'P', '9975', '9455', '4983', '9563', 'I', '4565']