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.
['3509', 'U', '3923', '323', '2789', '9397', '1161', 'a', 'N', 'n', 'I', 'j']