"index"

means any figure—

(a)	that is published or made available to the public; and

(b)	that is regularly determined—

(i)	entirely or partially by the application of a formula or any other method of calculation, or by an assessment; and

(ii)	on the basis of the value of one or more underlying assets or prices, and any derivative thereof; and

(c)	is determined to be an index for this purpose by the Financial Sector Conduct Authority;