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.
['r', '3185', 'I', '6797', '6625', 'M', 'B', '7207', 'z', 'b', 'l', '9015', '8447', '2009', '1931', 'X', 'A', '3879']