Your Cost Index and Mach SPD over the Atlantic

[B-HKD]

Good Day,

I am planning on writing a paper for college on the affect rising fuel costs have had on cruise speeds and cost indeces over the past decade for commercial aircraft.

So for those of you that don't mind giving me some info. i would appreciate:

Aircraft type:
Cost Index: (if not applicable then state you CRZ mach used)
CRZ Mach used over the Atlantic or when on a NAT: (if applicable)
Airline: (at your discression)

Feel free to add any extra info.

thanks in advance!