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.
['C', 'E', '6859', 'N', '4017', 'P', 'r', 'k', '6777', '5589', '8713', '1377', 'q', 'a', '5465', '7715', '5569', 'D', '6763', 'd']