well,looks like mid 1950s popularity is Higher than another era,Proof that my next mod wold much probably based on MID-Late 1950s(Just Like the godfather II Game)
Eras And games that will be based
early and Mid 50s(Mafia 2 1951)
Mid and Late 50s(The godfather II 1959)
early and Late 60s(the godfather II 1960 and Possibly mafia III 1968)
Late 1970s(Driver Parallel lines 1978)