It is a custom of five good friends that they wear a different tie each day, each one the one they wore the longest ago. Each of them has at least two ties, but none of them has a dozen. None of them has two ties of the same color, and there are no two of them who have the same number of ties. We have the following data from the last month of last year:

1. On December 1, Aladár wore a blue, Bandi and Feri wore red, Pista wore green, and Géza wore a yellow tie.
2. On December 19, Pista wore green, Géza wore yellow, Feri wore blue, and the other two wore red ties.
3. On December 23, Pista wore a white tie, and on December 26, he wore a yellow tie.
4. The colors of the ties worn on December 11 were: yellow, red, blue, green, and white.
5. On New Year's Eve, all five wore ties of the same color as on December 1.

Question: What tie did Bandi wear on January 1 of this year?