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.
['7511', '8337', 's', '2393', 'k', 'I', 'a', 'm', '3119', '5089', 'P', 'P', '7481', '4163', '4913', '8553', 'z', '3145', 'm', 'K', 'O', '4831', '163', '3029', '5181', '757']