(1) How many people attended the annual Public Sector Innovation Conference in (a) 2012, (b) 2013, (c) 2014 and (d) 2015; (2) how many people were expected to attend each specified conference in each of the specified years; (3) what total amount was spent on hosting each of the specified conferences in (a) 2012, (b) 2013 and (c) 2014; (4) whether the specified amount includes (a) the salaries and (b) other costs related to any staff members who assisted with these conferences; if not, what would be a fair estimate of these ancillary costs?