If you look at the attached screen print, just below where it says "4119 / 4308 cards" you will see "Display", "Activation", "Downloads" etc.
Those are your filter menus. Click on the downward arrow alongside and you will see the filter values.
In the example shown, where the filter says "2007,2008" in orange, that indicates the values I have selected in that filter,
Hope this helps.