[RTTY] What is W1AW's normal mark freq for RTTY?

[Dick Kriss, AA5VU]

Per ARRL web page

> Teleprinter Transmissions
>
>Frequencies are 3.625, 7.095, 14.095, 18.1025, 21.095,
>28.095 and 147.555 MHz.
>

I have rock solid print on W1AW at the TS-570's LSB/FSK dial frequency of
14097.30 less 2125 Hz offset or 14095.175 or 14095.2 rather than 14095.00.

What is W1AW's normal mark frequency for RTTY?  I remember reading somewhere
they are not right on 14095.00

Dick, AA5VU