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', '4545', 'D', '6937', '8519', 'f', '2157', '7563', 'W', 'k', 'z', 'p']