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.
['l', '6419', '1001', '5847', 'i', '6243', '9859', 'Z', '8229', '9395', 'R', 'b', 'c', '1411', '2369', '9127', 'I', 'W', 'I', '2457']