Washington Unclaimed Funds In Washington State, Can You File To Get Unclaimed Tax Refunds From 2000?

In Washington State, can you file to get unclaimed tax refunds from 2000? - washington unclaimed funds

A little bit of work in 2000 and has approximately 50 million tax deduction that I never bothered to ask, and now I wonder if I could file to get this money, or if it is too late.