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.
['z', 'K', '9891', 'j', '1255', '6005', 'D', '8747', 'N', 's', 'I', '6157', 'J', '3943', 'Q', 'q', 'O', '9153', 'Z', 'k', '3235', '4623']