Per premierleague.com:
There were 742 transactions during this period. Not all of these will have attracted an agent's fee. The amounts shown include payments made by clubs on behalf of players.
The Premier League agreed, in June 2008, that from season 2009/10 onwards each club would publish, on 30th November each season, the total amount it paid to authorised agents during the period 1st October of the previous year to 30th September of that year (encompassing the two transfer windows).
City were in third place in total spend, paying £5,952,26, a drop of 53.8% on the previous years figure.