I have an attribute field which contains Date data. The data is broken down like "3/14/2016". I would like to have different symbology for different years. When I go into the symbology tab within the layer properties and set the field that contains the date I do not have the option to set the symbology for each year. Instead it shows me a list of dates contained in the fields like the above example. How do I tell arcmap to only look at the year and not the month and day? So in the long run every feature with the same year has the same symbol?