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.
['t', 'v', '435', '5465', '8425', 'w', 'q', 'b', 'Z', '5525', '6253', 'S', '5873', '6897', 'd', 'r', 'k']