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.
['O', '6889', 'D', 'P', 'z', '171', 'z', 'Z', '2141', '251', 'f', '9107', '9451', '9831', '8399', '8371', '3119', 't', 'W', '8747', '6625', 'u', 'e', '2035', 'l', '9309', 'T', 'k', 'b', '1417', '5803', 'q', 'U']