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.
['I', 'b', '7815', 'R', '6589', 's', '4093', '9595', '5737', 'H', '3129', '4945', 'l', '9001', 'P', '7899', 'T']