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.
['165', 'r', '2643', 'i', 'H', '8145', '7121', '9525', 'R', 'X', '8239', '5689', '9535', '725', '9465', '7987', 'r', '8953', 'w', 'k', 'n', '7797', 'Z', 'Q', 'd', 'l', 'o', '6735', 'r', 'q', 'P', 'z']