In 2015, what was the population of the city where April Steiner Bennett performed her personal best pole vault?
April Steiner Bennett:  Her personal best is 4.63 m , achieved in April 2008 in Norman, Oklahoma. Norman, Oklahoma:  Norman's estimated population of 120,284 in 2015 makes it the third-largest city in Oklahoma, and the city serves as the county seat of Cleveland County.
120,284