How long has it taken on average (a) in the (i) 2008-09, (ii) 2009-10, (iii) 2010-11, (iv) 2011-12 and (v) 2012-13 financial years and (b) during the period 1 April 2013 up to the latest specified date for which information is available to issue a (aa) reconnaissance permit, (bb) prospecting right, (cc) mining right and (dd) retention permit?