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.
['3911', 'G', 'Z', '2047', 'n', '7055', '3883', 'p', 'i', '4691', 'z', 'I', '8855', '9435', '8143', 'l', '3849', '3601', 'W']