For the purposes of this article the “published monthly average” means:

(a) Moody’s Corporate Bond Yield Average-Monthly Average Corporates as published by Moody’s Investors Service, Inc. or any successor thereto.

(b) In the event that Moody’s Corporate Bond Yield Average-Monthly Average Corporates is no longer published, a substantially similar average, established by the Legislature.

(Added by Stats. 1982, Ch. 1351, Sec. 3.)