Box 14 of my W2 has some value like 12.34 SUI, what is the meaning of this? And how can I complete?

I live in NY and work in PA. On my W2, Box 14 I see the following things:

  • Federal copy has: like 12.34 SUI
  • PA State copy has: like 12.34 PA SUI
  • NY state copy has:  (its empty, nothing is there)

What is the meaning of this and how to complete it? Do i need to type every part like federal and states?