I thought some of you might need some real world cost index values.  So I gathered some for you from various airlines.

Air Canada - CI  70

Qantas - CI  40 for domestic routes
          - CI  20 for most international routes

British Airways - CI  40

First Choice - CI  60

United - CI  40

Delta -
Aircraft__________ECON___________SL1____________OT1

B767-200                 81                      54                       243

B767-300                 94                      63                       377

B767-300ER             113                     75                      377

B767-400ER             107                     71                      377


ECON- For minimum cost operations. (normal)

SL1- Around 2/3 of ECON for better fuel efficiency when you are experiencing tailwinds or are ahead of schedule.

OT1- Used for headwinds, or when behind schedule.

Best Regards,
Robert