(1) For the purposes of paragraph 2, a reference to the “baseline performance” of a participating authority in a performance period is to the amount determined in accordance with sub-paragraphs (2) to (5).
(2) For the performance period beginning with 1st April 2016 the baseline performance is the higher of the following amounts—
(a) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st April 2014 were reduced as a result of relevant activities; and
(b) the average of—
(i) the amount specified in paragraph (a); and
(ii) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st April 2013 were reduced as a result of relevant activities.
(3) For the performance period beginning with 1st July 2016 the baseline performance is the higher of the following amounts—
(a) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st July 2014 were reduced as a result of relevant activities; and
(b) the average of—
(i) the amount specified in paragraph (a); and
(ii) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st July 2013 were reduced as a result of relevant activities.
(4) For the performance period beginning with 1st October 2016 the baseline performance is the higher of the following amounts—
(a) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st October 2013 were reduced as a result of relevant activities; and
(b) the average of—
(i) the amount specified in paragraph (a); and
(ii) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st October 2012 were reduced as a result of relevant activities.
(5) For the performance period beginning with 1st January 2017 the baseline performance is the higher of the following amounts—
(a) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st January 2014 were reduced as a result of relevant activities; and
(b) the average of—
(i) the amount specified in paragraph (a); and
(ii) the amount by which, in the Secretary of State’s opinion, the total payments of housing benefit made by the authority in the period of 3 months beginning with 1st January 2013 were reduced as a result of relevant activities.