This is the URL for air-insight http://airinsight.com/2010/12/06/cseries-beats-neo-a3

This is the URL for air-insight http://airinsight.com/2010/12/06/cseries-beats-neo-a3

Does not say when exactly when the data was collated but the article is dated 06 December 2010.

Also it excludes the figures for Boeing 737-900 model series