What (a) amount of the total funding allocated for contingent liabilities in the SA Police Service was spent (i) in the (aa) 2011-12, (bb) 2012-13, (cc) 2013-14 and (dd) 2014-15 financial years and (ii) from 1 April 2015 up to the latest specified date for which information is available and (b) is the breakdown of this expenditure in the specified financial years and period?