Shifts in private jet traffic underline new patterns for the ultrarich. J. David Ake/Getty Images Private jet travel is on the rise, and new routes underline the behavior of the wealthy. These popular routes highlight new financial centers and how the rich split time between multiple homes. Private jet traffic soared along these 11 routes last year. A surge in private jet travel along key routes last year points to a new map of global wealth. Eleven routes saw at least a 65% increase in pri...