Boeing has developed the 787 for production in 2008*. It is expected to perform 20% more efficiently than any other plane. Assume the passenger load is similar to the Boeing 777 (which cost $6 billion to design and went into service in 1993). The BLS Aircraft Manufacturing Producer Price Index grew from 128.6 in 1993 to 164.2 in 2003. What would have been the cost estimation to design a new aircraft in 2003?