“bonus” means any amount distributed by any co–operative society or company referred to in this section out of its profits or surplus for any year of assessment or, in the case of the vereniging referred to in paragraph (h) of subsection (2), out of the stabilization fund referred to in that paragraph, whether such amount is distributed in cash or by way of a credit or an award of capitalization shares or bonus debentures or securities, if such amount –
(a) is divided among the persons entitled thereto in such manner that the amount accruing to each such person is determined in accordance with the value of the business transactions between such society or company and such person; and
(b) is distributed during the specified period in relation to such year of assessment or is distributed out of the stabilization fund referred to in subsection (2) (h);