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.
['249', '1049', '1155', 'T', '4399', 'b', 'u', '833', 'I', '1421', 'w', '9037', '2355', '5397', '4335', 'X', '341', '709']