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.
['2367', '9217', 'u', '2301', 'M', 'm', 'U', 'o', 'z', 'u', 'a', 'k']