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.
['3803', 'a', '9747', 'W', '1265', 'C', 't', 'b', 'Z', '7657', 'z', '8987', '6693', 'Q', 'E', 's', 'a', 'p', 'I']