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.
['X', 'w', '3345', '9285', '6607', '411', '755', 'r', 'D', '4435', 'n', '3589', 'w', 'a', 'n', 'i']