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.
['Q', 'u', 'V', '8187', '4661', 'p', 'g', '5761', 'a', '4071', '9697', '781', '1633', 'v', '6449', '7963', '7069', 'O', 'Z', '5407', 'z']