I received a 1099G in 2016 tax year 2015. the amount in box 2 is the amount refunded in 2015 CA state filing. Do I need to report this in 2016 as income?

I am confused, why is the refund needing to be reported in 2016? The amount on the 1099-G matches amount on CA Form 8453-OL part 1 row 2