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.
['4705', '6709', 'p', '169', '3429', 'w', '9159', 's', 'I', 'y', '7781', '8235', '7637', 'E', 's']