Amusement Machine Licence Duty (AMLD) is collected by HM Revenue and Customs, not the Gambling Commission.
Information on AMLD receipts broken down by machine category is not available. The total annual monthly receipts from amusement machine licence duty can be found in the HM Revenue and Customs Betting and Gaming Statistical Bulletin, which is available from the HMRC website address at:
http://www.uktradeinfo.co.uk/index.cfm?task=bullbett