alphagolf's posts are fascinating in that they break down the passenger figures into classes.
I can only rely on the raw overall numbers provided by the CAA and a summary of the Bristol-Newark route since its inception in May 2005 is as follows:
2005 (part year from May) 55, 254
2006 84,046
2007 93,225
2008 90,195
2009 83,284
2010 (up to and incl April) 21,817
Total 427,821
As a comparison the Belfast International figures (route to Newark started one week after the Bristol route) are: 56,747, 102,317, 103,627, 99,644, 99,794, 25,259 487,388.
The BFS route operated largely as the BRS route - daily from early March until early November then 5 x weekly in winter, though on occasions around Christmas/New year and US Thanksgiving rotations were reduced further. In January and February this year the BRS route was reduced to 4 x weekly.
In the main summer period months in 2009 the total monthly Bristol route passenger numbers were as follows, with average load and load factor indicated (to the nearest whole percentage figure).
April 8031 134/76%
May 7439 120/69%
June 8186 136/78%
July 8386 135/77%
August 9622 155/88%*
September 8655 160/92%**
October 8336 154/88%
* highest monthly total since route began
** route reduced to 6 x weekly from early September (no Wednesdays) for the first time in a summer period thus giving the highest ever monthly load factor - back to daily for summer 2010
It does seem that BRS did pretty well in terms of overall passenger numbers for most of the summers that the route operated - the winters though, especially January and February, were disappointing.
It was reported that BRS waived landing fees for the first three years of the route's operation and this may have continued after that. I know from speaking to a senior figure at BRS that Continental were extremely impressed with the way the flight was handled – BRS were desperate to retain the route once won and went the extra miles to try to keep it.
My own view remains that once CO gained access to LHR and then obtained additional slots to use for EWR from there the BRS route was always going to be in severe danger, and so it has proved.