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', 'F', '1907', 'E', 'o', '3001', 't', 'k', 'B', '6275', '7235', '8533', 'b', '4945', 'm', '7727', '4775', '615', '987', 'P', '5075', '1309']