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.
['6099', 'j', '573', '7791', 'S', 'u', '5459', '145', '6945', 's', '1151', '5297', 'P', 'L', '1489', '309', '4065', '3991', '2659', 'P', '7521']