Here are some figures:
It is a comparison of lease rates among lessors between January 2001 and January 2003:
A330-200 : -35 to -38%
B767-300ER: -46 to -57%
A320: : -25 to -41%
B737-800 : -22 to -26%
The level of these rates should remain about the same within the next two to three years, if the recovery after the Gulf War II follows an identical path to the one after Gulf War I.
FLEXJET
(source: Airline Business Magazine)