251.6. The aggregate of capital gains otherwise determined under sections 851.16, 851.21, 860, 1106, 1113 and 1116 of an individual for a taxation year as a result of one or more elections, allocations or designations made after 22 February 1994 by a flow-through entity shall be reduced by such amount as the individual claims, not exceeding the individual’s exempt capital gains balance for the year in respect of the entity.