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', 'I', 'J', 'Z', 'P', '5821', '7435', '299', '1715', 'M', 'O', 'z', 'n', 'f', '9437', '3073', 'D', 'C', 'n', '5231', 'h', '535', '8035', 'M', 'i', 'I', 'z', 'w', '2643', '7083', '8471', '2135', '655', '1935', 'i', '5439', '7991']