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.
['7261', '6215', '3479', '5399', '1755', 'P', '1597', 'p', '6799', 't', 'L', 'z', 's']