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.
['K', '4061', 'w', '3457', '8175', 'L', 'S', '429', '7421', '9507', '273', 'y', 'O', '6455']