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.
['7721', '4699', 'j', 'g', 'E', '4315', '8667', '4137', 'i', 'T', '4273', '3491', 'H', '7675', 'S', 'B', 'p', '2337', '3811', '9689', 'P', '3883']