In 2016, Google rented 1000 acres of a historic California airbase in the San Francisco Bay Area for $1.16 billion via a 60-year lease. Annual M&O is expected to be $6.3 million. In addition, Google will refurbish three hangars at a cost of $2.6 million 4 years from now. Assuming the $1.16 billion represents the present worth of only the lease, what is the equivalent AW of the transaction over the 60-year period at an interest rate of 15% per year?