Here are the pre-concession 12th year rates at NWA:
CAPT
747-400......273.15
747............259.87
A330..........246.00
DC10..........244.78
757............219.96
A320..........211.70
DC9...........191.20
FO
747-400......185.74
747............176.71
A330..........167.28
DC10..........166.45
757............149.57
A320..........143.96
DC9............130.02
SO
747............155.92
DC10..........146.87
Hope that is helpful.