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.
['6507', 'A', '7297', 'I', '6963', 'E', '3839', '6841', '6983', '6705', 'E', '5295', 'n', '2803', 'C', 'C', 'B', 'j', '2097', '1839', '1707']