What is the value of a 1940 nickel?

In circulated condition, no added value 1940 Jefferson Nickel; With no mint mark, in very fine condition is worth $0.20, uncirculated is worth $1.75, proof is worth $37.50. With D mint mark, in very fine condition is worth $0.25, uncirculated is worth $3.75. With S mint mark, in very fine condition is worth $0.30, uncirculated is worth $3.50.