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.
['829', 'i', '3265', '4365', 'D', 'f', '9421', '5713', '6201', 'z', 'S', '7847', 't']